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.

Ortho Home Defense Max Bed Bug And Flea Killer Powder

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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NZ$179

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered 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—pests don’t stand a chance!

RAPID CONTACT KILL - Instantly eliminate bed bugs, fleas, and a broad spectrum of pests upon contact—no waiting around.
LONG LASTING DEFENSE - Enjoy peace of mind with up to 8 months of continuous pest control.
MULTI PEST PROTECTION - Beyond bed bugs and fleas, defend your home against ants, cockroaches, spiders, silverfish, and more.
PRECISION APPLICATION - Easily treat hidden hotspots like cracks, crevices, and baseboards with a simple hand duster or direct squeeze.
INTEGRATED 3 STEP SYSTEM - Part of Ortho’s proven bed bug solution—combine with traps and sprays for total infestation eradication.

Ortho Home Defense Max Bed Bug & Flea Killer Powder is a powerful, easy-to-use insecticide powder designed to kill bed bugs, fleas, and a wide range of household pests on contact. It provides up to 8 months of protection by targeting hard-to-reach hiding spots such as cracks and crevices. As the third step in Ortho’s comprehensive 3-step bed bug solution system, it complements traps and sprays for maximum effectiveness, making it an essential tool for maintaining a pest-free, healthy home environment.

Specifications

Asin	B0812KTXBR
Best Sellers Rank	202,027 in Garden (See Top 100 in Garden) 655 in Bed Bug, Flea & Mite Control
Brand Name	Ortho
Customer Reviews	4.3 4.3 out of 5 stars (2,052) 4.3 out of 5 stars
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
Manufacturer	Ortho
Manufacturer Part Number	4389005
Model Number	4389005
Number Of Items	1
Scent Name	Unscented
Size	340 g (Pack of 1)
Target Species	Bed,Bed Bug,Bed Bugs,Bug,Flea
Unit Count	340.0 gram
Upc	071549438906

Reviews

User

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

User

Good product

Kept the bugs out ..

28.06.2026

User

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

User

It works

I definitely would buy this again if I need it

10.08.2026

User

Meth For Bugs Lol

Found A Visitor On My Couch And Panicked At 1st But Saw And Purchased This Along With A Affordable Steamer And This Seems To Do The Job. I'm on standby to see if any eggs or babies roam in the next few weeks ⭐️⭐️⭐️⭐️⭐️

2.07.2026

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TrustScore 4.5 | 7,300+ reviews

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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NZ$179

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered 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 New Zealand.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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Fantastic and great service. Shipping was faster than expected.

1 week ago

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Ortho Home Defense Max Bed Bug & Flea Killer Powder, 12 oz.

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Description

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Reviews

Common Questions