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?

Sometimes there will be bugs crawling out. Makes it easier target to kill.

Can i spay mattress or clothing with this

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.

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?

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.

Does this Kill even after its dried?

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.

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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.

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.

Product ID: 410441652

Details

Brand
Ortho
Item form
Powder
Item volume
12 Fluid
Number of items
1
Scent
Unscented

⏳Up to 8 months lasting control

⚡Kills bed bugs & fleas on contact

🕳️Precision application in cracks & crevices

₩129448

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

🛡️ Defend your domain—because pests don’t get a second chance!

FAST ACTING CONTACT KILL - Eliminate bed bugs and fleas instantly on contact—no waiting, no lingering infestations.
SAFE UNSCENTED FORMULA - Discreet, odorless protection that fits your clean, modern living space without compromise.
LONG LASTING PEST DEFENSE - Enjoy up to 8 months of uninterrupted protection against bed bugs, fleas, and more.
PART OF A PROVEN 3 STEP SYSTEM - Integrate seamlessly with Ortho’s Bed Bug Trap and Killer for a comprehensive pest control strategy.
TARGETED PRECISION APPLICATION - Easily apply powder in hard-to-reach cracks and crevices for maximum impact where pests hide.

Ortho Home Defense Max Bed Bug & Flea Killer Powder is a powerful, unscented insecticide designed for precise application in cracks and crevices. It kills bed bugs, fleas, and a broad spectrum of household pests on contact and provides up to 8 months of lasting control. Ideal as the third step in Ortho’s 3-step bed bug solution system, this 12 oz powder is easy to use and perfect for tough-to-treat areas like bed frames, baseboards, and closets—helping you maintain a pest-free, comfortable home environment.

Specifications

ASIN	B0812KTXBR
Best Sellers Rank	182,298 in Garden ( See Top 100 in Garden ) 596 in Bed Bug, Flea & Mite Control
Brand	Ortho
Brand Name	Ortho
Customer Reviews	4.4 out of 5 stars 1,996 Reviews
Global Trade Identification Number	00071549438906
Included Components	Ortho - 71549438906
Item Form	Powder
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
Item form	Powder
Item volume	12 Fluid Ounces
Manufacturer	Ortho
Manufacturer Part Number	4389005
Model Number	4389005
Number of Items	1
Number of items	1
Scent	Unscented
Scent Name	Unscented
Size	340 g (Pack of 1)
Target Species	Bed,Bed Bug,Bed Bugs,Bug,Flea
UPC	071549438906
Unit Count	340.0 gram
Unit count	340.0 gram

Reviews

T**M

Good product

Kept the bugs out ..

28.06.2026

J**S

Hot Shot Bedbug Killer

Excellent product made by Hot Shot. It lives up to its name. It kills on contact. No unpleasant smell.

1.07.2026

N**K

Does the job. Apply minimal amounts

Works great on roaches,ants, bed bugs I've tried it on. Don't over apply the dust,less is the best. It's takes a while to kill the pests, because of the minimal amount of insecticide they put in the product to make it undetectable to the insects.

22.06.2026

M**S

It works!

Great product! BB problem resolved.

28.06.2026

J**N

Great product

Works great

27.06.2026

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₩129448

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

Secure transaction

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