---
product_id: 187935861
title: "Ortho Home Defense Max Bed Bug & Flea Killer Powder - Bed Bug Killer, Apply to Cracks and Crevices for up to 8 Months of Control, 12 oz."
brand: "ortho"
price: "₩31803"
currency: KRW
in_stock: true
reviews_count: 8
category: "Ortho"
url: https://www.desertcart.kr/products/187935861-ortho-home-defense-max-bed-bug-and-flea-killer-powder
store_origin: KR
region: South Korea
---

# Up to 8 months control Kills on contact Targets hidden cracks & crevices Ortho Home Defense Max Bed Bug & Flea Killer Powder - Bed Bug Killer, Apply to Cracks and Crevices for up to 8 Months of Control, 12 oz.

**Brand:** ortho
**Price:** ₩31803
**Availability:** ✅ In Stock

## Summary

> 🛡️ Defend your space like a pro—because pests don’t stand a chance!

## Quick Answers

- **What is this?** Ortho Home Defense Max Bed Bug & Flea Killer Powder - Bed Bug Killer, Apply to Cracks and Crevices for up to 8 Months of Control, 12 oz. by ortho
- **How much does it cost?** ₩31803 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/187935861-ortho-home-defense-max-bed-bug-and-flea-killer-powder)

## Best For

- ortho enthusiasts

## Why This Product

- Trusted ortho brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Multi-Pest Control:** Effective against bed bugs, fleas, ants, cockroaches, spiders, and more
- • **No Stains, No Fuss:** Safe for use on wood, baseboards, and closets—avoid carpets and fabrics
- • **Long-Lasting Defense:** Protect your home for up to 8 months without reapplication
- • **Precision Application:** Easily apply powder in hard-to-reach cracks and crevices for maximum impact
- • **Step 3 in Proven System:** Complements Ortho’s 3-step bed bug solution for total infestation control

## Overview

Ortho Home Defense Max Bed Bug & Flea Killer Powder is a powerful indoor insecticide designed to kill bed bugs, fleas, and a broad spectrum of pests on contact. Applied easily in cracks and crevices, it offers up to 8 months of continuous protection. As the final step in Ortho’s 3-step bed bug system, it targets hidden infestations where sprays can’t reach, ensuring a pest-free home environment.

## Description

When you need a flea and bed bug infestation control product for indoors, reach for Ortho Home Defense Max Bed Bug & Flea Killer Powder. This indoor insect control product kills bed bugs, fleas, and other listed insects where they hide. This indoor ant killer, bed bug killer, and flea killer also kills and controls silverfish, carpet beetles, centipedes, cockroaches, scorpions, spiders, and other listed insects for up to 8 months. This indoor bug killer powder is the third step in the Ortho 3-step bed bug solution system. Use step 1 to detect bed bugs with Ortho Home Defense Max Bed Bug Trap and step 2 for room treatment with Ortho Home Defense Max Killer (both sold separately). Ortho Home Defense Max Bed Bug & Flea Killer Powder kills bed bugs, fleas, ants, silverfish, carpet beetles, centipedes, cockroaches, scorpions, spiders, and other listed bugs in areas that are hard to spray like the cracks and crevices of bed frames, along baseboards, near window frames, in closets and other places bugs travel and like to hide. It's easy to use this bed bug powder, simply apply directly from the bottle or with a hand duster.

Review: Fleas, Fleas everywhere with lots of blood to drink - I have several cats, and I didn't know we had fleas. My Shark vacuum broke, and while I waited for parts to come, my house became infested. My cats were acting crazy by sleeping in my top loader washer, shower, and kitchen table. It was so bad that fleas were crawling all over me and even got into my bed. I didn't know why I had an itchy rash on my legs and why my legs were starting to swell. I took a flea comb and ran it through one of my cats, and it had tons of fleas crawling on the comb. We had a major infestation. I was mortified! From what I've read, if you have a problem this bad, you will need an exterminator. That was not an option for me. I just couldn't afford that kind of expense. I had to find a way I could do something that wouldn't kill my cats. You will need a powerful vacuum before you start. Preferably something with a HEPA filter. You will need to vacuum "at least 3 times as long as you normally would" before you start, and move all your furniture. I sprayed it on my couch and under my couch cushions. The vibration of the vacuuming makes the larvae hatch, so be prepared. You may need to spray (at least the carpet) every 2 weeks with Ortho because they will keep hatching. I suggest getting 2 bottles of Ortho to start if your problem is this bad. I am already on my 4th bottle, but the fleas are almost gone. Vacuum the hard floors too. Vacuum as often as you have time for, and for longer than you normally would. Shake the bottle well before each time you spray. Ortho has a pleasant smell. When I would come home from work, I was shocked at how nice my house smelled. There was no nasty chemical smell to this stuff. After the first spray, things got way under control, and I wasn't loaded with bites anymore. I bought this and Tekko Pro IGR, which is an insect birth control with a cheap hand-pump garden sprayer. I made a gallon of Tekko Pro in the garden sprayer and locked up my cats. I vacuumed the whole house and scrubbed all the hard floors first with pine cleaner. Dump your vacuum outside and never leave dirt in your vacuum. As I cleaned sections of the house, I sprayed both the Tekko Pro and the Ortho on the whole carpet and hard floors. I took my foot and rubbed it into the carpet and made sure it was damp. I have several box fans and turbo fans, and I blew them on the floor to dry it. I have ceiling fans and I turned them on too. You want this stuff to dry. I even sprayed the sides of my mattress and box spring like you would for bed bugs. You can open or crack your windows open while it dries. I bought Nitenpyram powder and capsules (generic Capstar) and learned how much I should put in a capsule. That pill is given daily. I also bought Lufenuron capsules and powder, and learned how much should go in a #4 capsule for cats. I mark on the calendar when I give the Lufenuron because that one is given monthly. If you do these things, you will really get your problem under control. There is way less scratching and chewing going on with my cats. I keep combing them looking for fleas. It's rare that I even find one flea. The comb is not for removing fleas. It's for checking for fleas and flea dirt. You can NOT use a flea comb and think this will eliminate your problem. You'll be in a heap of trouble if you don't listen to me. I hope if you have fleas, you listen to what I've told you, and you can get your problem under control. Make sure you wet down your whole carpet and behind things like dressers and bookcases that you can't move. You can't miss any of the carpet or floors. In open spaces, rub it into the carpet with your shoe. Make sure it's dry before you let your cats back in. If you do it in sections, it will dry much faster. I even sprayed it on pet beds after vacuuming or washing them. Just make sure they are completely dry before you give them back. You can spray down pet bedding every 2 weeks. You can throw the pet beds in the dryer weekly for 30 minutes, too. That makes a big difference. I sprayed my house with the 1st wand with each new bottle. So if you buy more like I did, save them all in case one won't spray. If you have any left from the first bottle, add it to your new bottles. Don't waste anything.
Review: Cry havoc! And let slip the dogs of war! - I did not purchase this spray. I summoned it. When I inserted the batteries and energized the wand, the air shifted like I’d just read aloud a forbidden passage from an ancient pest‑slaying grimoire. Somewhere, a bed bug prophet whispered, “It has begun.” This isn’t a household product. This is chemical Ragnarok in a bottle. I strode into my bedroom like a general surveying a battlefield, loosed the spray, and declared: “Cry havoc! And let slip the dogs of war!!” And Ortho said: HOLD. MY. KEG... The first spray didn’t just mist — it announced itself. It hit the mattress with the force of a divine decree. I swear I heard a tiny bug voice scream, “SHE HAS THE ORTHO! FLEE, YOU FOOLS!” Within minutes, the six‑legged bastardettes were staggering around like they’d been hit with a plot twist they weren’t emotionally prepared for. They renounced their earthly sins. A bed bug tried to rally but dissolved into dust mid‑speech. This stuff doesn’t kill pests. It erases their lore. By the time I was done, my bedroom felt like the aftermath of a mythic battle sung by bards who drink too much. A Valkyrie appeared... Would I recommend it? Absolutely. If you want a calm, reasonable product, look elsewhere. If you want to unleash a holy crusade upon the forces of itch and evil, this is your Excalibur. Five stars. Ten if the rating system allowed “apocalyptic.”

## Features

- BED BUG SOLUTION SYSTEM: Use this bed bug powder as Step 3 along with Step 1 Ortho Home Defense Max Bed Bug trap to detect bed bugs, and Step 2 Ortho Home Defense Max Bed Bug Killer to kill bed bugs quickly (sold separately)
- EASY TO USE: Evenly apply the bed bug powder insecticide with a hand duster or squeeze it directly from the bottle to apply in cracks and crevices; for best results, apply lightly and uniformly to infested areas
- LASTING PROTECTION: This bed bugs killer provides up to 8 months of control for bed bugs, fleas, ants, silverfish, carpet beetles, centipedes, cockroaches, scorpions, spiders, and other listed bugs
- KILL BED BUGS BY CONTACT: Ortho Home Defense Max Bed Bug & Flea Killer Powder is a bed bug powder and flea powder that kills by contact and provides long-lasting control, killing bed bugs and fleas in difficult-to-spray places where they like to hide
- WHERE TO USE: Use this bed bug treatment and flea treatment for homes in tough-to-reach cracks and crevices in bed frames, wall mouldings, in closets, and under cupboards; to avoid staining, do not use on carpets or fabrics

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0812KTXBR |
| Best Sellers Rank | #2,645 in Health & Household ( See Top 100 in Health & Household ) #3 in Indoor Insect & Pest Control Sprays |
| Brand | Ortho |
| Brand Name | Ortho |
| Customer Reviews | 4.4 out of 5 stars 33,644 Reviews |
| Global Trade Identification Number | 00071549438906 |
| Included Components | Ortho - 71549438906 |
| Item Form | Powder, Spray |
| Item Nype Name | Ortho Home Defense Max -Kills on Contact, Provides Up to 8 Months of |
| Item Volume | 12 Fluid Ounces |
| Item Weight | 12 Ounces |
| Manufacturer | The Scotts Company LLC |
| Manufacturer Part Number | 4389005 |
| Model Number | 4389005 |
| Number of Items | 1 |
| Scent | Unscented |
| Scent Name | Unscented |
| Size | 1 Count (Pack of 1) |
| Target Species | Insects |
| UPC | 071549438906 |
| Unit Count | 12.0 Ounce |

## Product Details

- **Brand:** Ortho
- **Item Form:** Powder, Spray
- **Item Volume:** 12 Fluid Ounces
- **Number of Items:** 1
- **Scent:** Unscented

## Images

![Ortho Home Defense Max Bed Bug & Flea Killer Powder - Bed Bug Killer, Apply to Cracks and Crevices for up to 8 Months of Control, 12 oz. - Image 1](https://m.media-amazon.com/images/I/71GmebLppxL.jpg)
![Ortho Home Defense Max Bed Bug & Flea Killer Powder - Bed Bug Killer, Apply to Cracks and Crevices for up to 8 Months of Control, 12 oz. - Image 2](https://m.media-amazon.com/images/I/71DZ+7d92RL.jpg)
![Ortho Home Defense Max Bed Bug & Flea Killer Powder - Bed Bug Killer, Apply to Cracks and Crevices for up to 8 Months of Control, 12 oz. - Image 3](https://m.media-amazon.com/images/I/71T30kP19sL.jpg)
![Ortho Home Defense Max Bed Bug & Flea Killer Powder - Bed Bug Killer, Apply to Cracks and Crevices for up to 8 Months of Control, 12 oz. - Image 4](https://m.media-amazon.com/images/I/817d67tCGKL.jpg)
![Ortho Home Defense Max Bed Bug & Flea Killer Powder - Bed Bug Killer, Apply to Cracks and Crevices for up to 8 Months of Control, 12 oz. - Image 5](https://m.media-amazon.com/images/I/81wBUlI1pgL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Does this product have residual effects, meaning do you have to spray the bugs directly to kill them or if they crawl through it later will it kill?**
A: Sometimes there will be bugs crawling out. Makes it easier target to kill.

**Q: Can i spay mattress or clothing with this**
A: Clothing should be washed to get rid of bugs when possible. Heat kills them just as well as chemicals, though heat doesn't have keep working later. Just put any fabric or pillows that fit into a dryer in on the hottest setting for the longest amount of time on the machine. You can wash and dry it normally after, though only using the dryer on completely dry fabric is needed.

**Q: What's the difference in this Ortho Max and the original ortho in which I've purchased three times and now they've hiked the price of double sometime?**
A: The difference is that Ortho Home Defense Max Bedbug, Flea, & Tick Killer uses Bifenthrin, Imidacloprid, & Piperonyl Butoxide.  Ortho Home Defense Bedbug, Flea, & Tick Killer uses phenoxybenzyl, dimethyl, cyclopropanecarboxylate, N-Octyl bicycloheptene dicarboximide, & Imidacloprid. Ortho Home Defense Insect Killer uses Bifenthrin, & Zeta-Cypermethrin.

**Q: Does this Kill even after its dried?**
A: Thank you for your question regarding Ortho Home Defense Max Bed Bug, Flea and Tick Killer. Insects must come in contact with the insecticide either at time of application when it is wet or after it has dried during the period of residual control. The residual is around 2 weeks. If you have any further questions, feel free to contact us at 866-324-9192.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fleas, Fleas everywhere with lots of blood to drink
*by V***A on December 21, 2023*

I have several cats, and I didn't know we had fleas. My Shark vacuum broke, and while I waited for parts to come, my house became infested. My cats were acting crazy by sleeping in my top loader washer, shower, and kitchen table. It was so bad that fleas were crawling all over me and even got into my bed. I didn't know why I had an itchy rash on my legs and why my legs were starting to swell. I took a flea comb and ran it through one of my cats, and it had tons of fleas crawling on the comb. We had a major infestation. I was mortified! From what I've read, if you have a problem this bad, you will need an exterminator. That was not an option for me. I just couldn't afford that kind of expense. I had to find a way I could do something that wouldn't kill my cats. You will need a powerful vacuum before you start. Preferably something with a HEPA filter. You will need to vacuum "at least 3 times as long as you normally would" before you start, and move all your furniture. I sprayed it on my couch and under my couch cushions. The vibration of the vacuuming makes the larvae hatch, so be prepared. You may need to spray (at least the carpet) every 2 weeks with Ortho because they will keep hatching. I suggest getting 2 bottles of Ortho to start if your problem is this bad. I am already on my 4th bottle, but the fleas are almost gone. Vacuum the hard floors too. Vacuum as often as you have time for, and for longer than you normally would. Shake the bottle well before each time you spray. Ortho has a pleasant smell. When I would come home from work, I was shocked at how nice my house smelled. There was no nasty chemical smell to this stuff. After the first spray, things got way under control, and I wasn't loaded with bites anymore. I bought this and Tekko Pro IGR, which is an insect birth control with a cheap hand-pump garden sprayer. I made a gallon of Tekko Pro in the garden sprayer and locked up my cats. I vacuumed the whole house and scrubbed all the hard floors first with pine cleaner. Dump your vacuum outside and never leave dirt in your vacuum. As I cleaned sections of the house, I sprayed both the Tekko Pro and the Ortho on the whole carpet and hard floors. I took my foot and rubbed it into the carpet and made sure it was damp. I have several box fans and turbo fans, and I blew them on the floor to dry it. I have ceiling fans and I turned them on too. You want this stuff to dry. I even sprayed the sides of my mattress and box spring like you would for bed bugs. You can open or crack your windows open while it dries. I bought Nitenpyram powder and capsules (generic Capstar) and learned how much I should put in a capsule. That pill is given daily. I also bought Lufenuron capsules and powder, and learned how much should go in a #4 capsule for cats. I mark on the calendar when I give the Lufenuron because that one is given monthly. If you do these things, you will really get your problem under control. There is way less scratching and chewing going on with my cats. I keep combing them looking for fleas. It's rare that I even find one flea. The comb is not for removing fleas. It's for checking for fleas and flea dirt. You can NOT use a flea comb and think this will eliminate your problem. You'll be in a heap of trouble if you don't listen to me. I hope if you have fleas, you listen to what I've told you, and you can get your problem under control. Make sure you wet down your whole carpet and behind things like dressers and bookcases that you can't move. You can't miss any of the carpet or floors. In open spaces, rub it into the carpet with your shoe. Make sure it's dry before you let your cats back in. If you do it in sections, it will dry much faster. I even sprayed it on pet beds after vacuuming or washing them. Just make sure they are completely dry before you give them back. You can spray down pet bedding every 2 weeks. You can throw the pet beds in the dryer weekly for 30 minutes, too. That makes a big difference. I sprayed my house with the 1st wand with each new bottle. So if you buy more like I did, save them all in case one won't spray. If you have any left from the first bottle, add it to your new bottles. Don't waste anything.

### ⭐⭐⭐⭐⭐ Cry havoc! And let slip the dogs of war!
*by T***D on April 15, 2026*

I did not purchase this spray. I summoned it. When I inserted the batteries and energized the wand, the air shifted like I’d just read aloud a forbidden passage from an ancient pest‑slaying grimoire. Somewhere, a bed bug prophet whispered, “It has begun.” This isn’t a household product. This is chemical Ragnarok in a bottle. I strode into my bedroom like a general surveying a battlefield, loosed the spray, and declared: “Cry havoc! And let slip the dogs of war!!” And Ortho said: HOLD. MY. KEG... The first spray didn’t just mist — it announced itself. It hit the mattress with the force of a divine decree. I swear I heard a tiny bug voice scream, “SHE HAS THE ORTHO! FLEE, YOU FOOLS!” Within minutes, the six‑legged bastardettes were staggering around like they’d been hit with a plot twist they weren’t emotionally prepared for. They renounced their earthly sins. A bed bug tried to rally but dissolved into dust mid‑speech. This stuff doesn’t kill pests. It erases their lore. By the time I was done, my bedroom felt like the aftermath of a mythic battle sung by bards who drink too much. A Valkyrie appeared... Would I recommend it? Absolutely. If you want a calm, reasonable product, look elsewhere. If you want to unleash a holy crusade upon the forces of itch and evil, this is your Excalibur. Five stars. Ten if the rating system allowed “apocalyptic.”

### ⭐⭐⭐⭐⭐ Exceeded my expectations!
*by C***K on October 7, 2023*

I cannot say enough good about this product. I have had flea problems in the past and I know what a task it is and how to get rid of them. It is no easy chore. One of the most difficult parts, is finding a product that actually works. I know how to prep before spraying or fogging. It is essential that you vacuum and vacuum well and pull furniture out from walls before you bomb or use any type of flea product. So of course I did that. I truly had an infestation at this point in time. You couldn't be in the room for more than a minute and they were crawling all over your legs. It was awful at night during the day all the time it was just getting worse. It got out of control in less than a week. So I have ordered exterminators to come to the house in the past. And they have had to come back multiple times to get rid of the flea problem. It's just one of those issues that you know it's going to be a while to get rid of. At least in my experience. I did my research and I believe Precor Foggers are one of the best Foggers on the market. But there again you'll probably have to use the product after 2 weeks of using the product the first time. But I am not for sure on this as it is my first time that I have purchased procore Foggers. While waiting for the Foggers to get to the house with a 3-day delivery I became impatient and noticed that I could buy the product bed bug and flea control and have it delivered the same day. To boot it was only 20 bucks. What could I have to lose. At least I could spray the damn bed and carpet and maybe get one night of sleep without getting attacked by bed bugs. That was all that I expected out of this cheap product or so I thought. I truly cannot say enough good things about this product. As I said I am currently waiting for my father's to arrive which will be tomorrow. At this point I honestly don't even know if I need them. I can't even believe that I am saying that right now. I bought one gallon and I addressed two of the rooms that were most significant with the flea infestation. I vacuumed very well pulled everything out from the walls and began spraying. I am telling you that within 2 hours I did not feel a thing crawling or see anything jumping around. I do not even believe my own words right now. I have adequate adequately sprayed both rooms with one gallon and even had a chance to do the hallways in the house that I was walking to and from those rooms. Just to make certain. I cannot find one damn flea in this house. I am simply amazed and flabbergasted that this product has single-handedly combated my infestation of two rooms with only one gallon and even had left over to do area rugs in the hallways. There is not one bug living in this house. There is not one bug on my dog. There is not one bug in my bed. I slept like a baby last night without any interference for the first time in weeks. I was able to walk around my room this morning and not a single flea had jumped on me not one nor have I been able to find one anywhere in this house. I simply have to say this product is an absolute winner and a must buy. I have stubborn fleas I always do when I get an infestation it was due to negligence of my roommate who forgot to put flea spray on his cats for 2 months and brought fleas into the house and it quickly developed into an infestation Within those two months then it was attacking my dog who I give advantage to and never has fleas my dog began to get infested even while taking the advantage monthly application and I've had to give him two or three flea baths a week to keep up so when I tell you it was an infestation I do not make light of the situation. I have had them before in my life and know how difficult it is to get rid of. I I'm not sure if I will have to reapply in 2 weeks but at this point I couldn't be happier. I did buy another gallon just to make sure I have it on hand at all times for 20 bucks who would be stupid enough not to buy this A1 product. Don't waste your money with any other more expensive or powders or other products this was the easiest thing I've ever done in my life. It couldn't have been more effective and the price you can't beat do yourself a favor save yourself the headaches get the same day delivery like I did and put your troubles to rest you will not be disappointed this stuff is fantastic my hat's off to ortho for a fine product better than the exterminators I've had in the past by far I just don't understand how this product has surpassed all others that I've used in all other services that I've used hands down the best.

## Frequently Bought Together

- Ortho Home Defense Max Bed Bug & Flea Killer Powder, 12 oz. – Apply to Cracks and Crevices for Up to 8 Months of Control
- Ortho Home Defense Max Bed Bug, Flea and Tick Killer with Comfort Wand, Bed Bug Spray, Kills Bed Bug Eggs, Fleas and Ticks, 1 gal.
- Ortho Home Defense Max Bed Bug Trap, Detect Bed Bugs in Homes and While Traveling, 2-Pack

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-05-08*