Ortho Home Defense Max Fume-Free Indoor Insect Spray

Last updated date: September 16, 2021

DWYM Score

9.2

Ortho Home Defense Max Fume-Free Indoor Insect Spray

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We looked at the top Indoor Insect Sprays and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Indoor Insect Spray you should buy.

Update as September 16, 2021:
Checkout The Best Indoor Insect Spray for a detailed review of all the top indoor insect sprays.

Overall Take

Whether you're looking to kill ants, fleas or earwigs, this indoor insect spray has you covered. In addition to ridding your home of these pests, the formula also creates a barrier to keep them from returning for up to 365 days. It's even safe to use in kitchens and bathrooms.


In our analysis, the Ortho Ortho Home Defense Max Fume-Free Indoor Insect Spray placed 1st when we looked at the top 5 products in the category. For the full ranking, see below.

From The Manufacturer

Kill and prevent insects indoors with Ortho Home Defense Max Indoor Insect Barrier. Create an indoor bug barrier against all common household insects (see label for complete list) to kill and protect for 365 days a year (for ants, roaches and spiders on non-porous surfaces). Kill ants, cockroaches, spiders, fleas, ticks, scorpions, beetles, earwigs, silverfish, centipedes, millipedes, and other listed insects. Use with confidence indoors as it leaves no stains or fumes and dries up to 30% faster (vs. other Ortho® formulas). People and pets may enter treated areas after the spray has dried. With the extended reach Comfort Wand, now with 2X the reach (vs. other Ortho® Comfort Wands), it's easy to apply. Easily apply in cracks, crevices, and into hard to reach places where insects hide — in kitchens, bathrooms, and basements, and around doors and windows. The wand's ergonomic design helps reduce back bending and hand fatigue with its one-touch continuous stream delivery — no pumping required. Apply anytime you see evidence of insect activity or need to put down a preventative pest barrier to keep bugs out.

An Overview On Indoor Insect Sprays

Insect sprays can be designed to keep bugs away (repellents) or to kill them. However, some sprays can do both. The types of repellents used on humans and pets are different from ones made to keep insects away from homes and outdoor spaces.

Insect sprays are considered to be insecticides. These products kill insects on contact, in most cases. While some are used for spot treatments and last for one application, others can create barriers or perimeters that last for weeks or months.

Insect sprays are generally made from chemicals called pyrethroids; these man-made pesticides are also found in other commercial products like pet sprays and pet shampoos. Common pyrethroids found in bug-killing sprays include sumithrin, resmethrin and permethrin.

These chemicals are used in very low levels, but anyone who is accidentally exposed to an extremely large amount could have symptoms like nausea, headache, diarrhea and dizziness. Always follow the label directions when using these sprays.

Indoor spot treatment sprays work well on roaches, flies, ants, bedbugs and fleas, but if you want to keep them from coming back, look for products that have barrier protection.

There are also indoor foggers; these create fine mists that let the insecticide penetrate under baseboards and into crevices to kill insects that are not easily visible. Many of these sprays come in gallon-sized containers with attached spray wands. Note that you can use exterior foggers outside your house, but do not use these indoors.

The Indoor Insect Spray Buying Guide

  • Keep children and pets away when insecticides are being applied and until the product has dried. Be sure to read the label for guidelines.
  • Do not use foggers unless absolutely necessary.
  • Only use insecticides that are approved for in-home use. Do not use outdoor pesticides inside your home.
  • Always keep insect spray in its original container. Never transfer it to another one.
  • Handling these chemicals more than needed is not recommended.
  • Do not mix these products with any other chemicals.
  • Store insecticides where they cannot be reached by children or pets.