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, 12 oz. | Kills Bed Bugs and Fleas, Kills on Contact, Provides Up to 8 Months of Control, Treat Cracks and Crevices

Ortho Home Defense Max Bed Bug & Flea Killer Powder, 12 oz. | Kills Bed Bugs and Fleas, Kills on Contact, Provides Up to 8 Months of Control, Treat Cracks and Crevices

Product ID: 410441652

Details

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

⏳Up to 8 months lasting protection

🕳️Targets hard-to-reach cracks & crevices

🕵️‍♂️Step 3 in 3-step bed bug solution system

NZ$168

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

Description

🛡️ Defend your domain—bed bugs don’t stand a chance!

NO FUSS NO SMELL - Unscented formula kills on contact without unpleasant odors—perfect for modern living spaces.
MULTI PEST CONTROL - Kills bed bugs, fleas, ants, cockroaches, spiders, and more for comprehensive indoor protection.
LONG LASTING DEFENSE - Protect your home from bed bugs and fleas for up to 8 months without reapplication.
PRECISION APPLICATION - Easily apply powder in hidden spots where bugs hide—cracks, crevices, and baseboards.
INTEGRATED 3 STEP SYSTEM - Part of Ortho’s proven bed bug solution—detect, kill, and powder for total eradication.

Ortho Home Defense Max Bed Bug & Flea Killer Powder is a powerful, unscented insecticide designed for targeted application in hard-to-reach areas. As the final step in a 3-step system, it delivers up to 8 months of continuous protection against bed bugs, fleas, and a broad spectrum of household pests. Its easy-to-use powder form allows precise treatment in cracks and crevices, ensuring bugs are eliminated where they hide without staining fabrics or carpets.

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

Common Questions

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

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

2 weeks ago

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NZ$168

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

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

View all Trustpilot reviews