Thermacell MR300 Portable Mosquito Repeller

Last updated date: May 28, 2021

DWYM Score

9.0

Thermacell MR300 Portable Mosquito Repeller

Why Trust DWYM?

DWYM is your trusted product review source. Along with our in-house experts, our team analyzes thousands of product reviews from the most trusted websites. We then create one easy-to-understand review. Learn more.

Don't Waste Your Money Seal of Approval
Look for the DWYM seal for products that are the best in the category.
Show Contents

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

Update as May 28, 2021:
Checkout The Best Mosquito Repellent for a detailed review of all the top mosquito repellents.

Overall Take

This product offers odorless, smokeless and DEET-less area control, deterring and repelling mosquitos over 7 feet in every direction from the device. By heating a mat saturated with natural oils and d-Allethrin, then fanning this vapor into the area, you’ll clear out the mosquitos without a face full of smoke or chemicals.


In our analysis of 15 expert reviews, the Thermacell MR300 Portable Mosquito Repeller placed 5th when we looked at the top 6 products in the category. For the full ranking, see below.

From The Manufacturer

15-Foot Area of Protection. Perfect for entertaining on lawn, porch, patio, pool or deck; proven technology used to fight mosquitoes in toughest spots on earth; provides 12 hours of protection. No Chemical Sprays, Wipes, DEET or Lotions on Skin. Patio Shield is more effective and repels mosquitoes without sprays, scents or flames of torches, smelly citronella or dirty candles. Scent-Free, Long-Lasting, Easy to Use. Highly effective repellent mats turn white when time to replace; evaluated by the EPA for safety and effectiveness; Turn it on… Mosquitoes Gone. Stylish, Convenient, Portable. The trusted Patio Shield Mosquito Repeller is the perfect gift for a new homeowner, hostess, retiree, college graduate, gardener or caregiver. 100% Satisfaction Guarantee. Thermacell offers support and warrants complete satisfaction during first year of use; the navy Patio Shield comes with cap, 1 fuel cartridge and 3 repellent mats.

Expert Reviews

User Summarized Score

9.3
5,468 user reviews

What experts liked

What experts didn't like

An Overview On Mosquito Repellents

In many places, mosquitoes are a fact of life in the summer months. Whether you just want to escape pesky bites in your backyard or are avoiding vector-borne diseases such as West Nile and Lyme disease in the great outdoors, a good mosquito repellent will keep you and your family covered.

When choosing between different ingredients and the various methods of application — from lotions to sprays to bracelets — the options for insect repellent can be overwhelming.

Sprays and lotions are assured to stick with you, and they are effective. Many dry well and won’t leave behind a residue, but some can leave you feeling sticky in the summer heat.

DEET and picaridin sprays and lotions have proven efficacy against mosquitoes and ticks. If these are a concern — or if you’re traveling to an area where you could be exposed to malaria or other vector-borne diseases — these chemicals provide a long-lasting way to avoid bites. However, while DEET and picaridin are really effective when you need protection, you might want a lighter repellent for other times.

Essential oil-based sprays provide some protection, but they’re usually not as long-lasting as chemical options.

Incense is a classic repellent choice for patios and decks, and the smell of citrus and herbs can be pleasant. However, being surrounded by smoke isn’t always enjoyable, and this sort of repellent is only effective in the immediate area.

Wristbands are designed to work similar to perfume. By remaining in contact with your skin, the oils and smells are absorbed into your bloodstream in small amounts and distributed throughout the rest of your body, where you sweat them out.

It’s best to find the delivery method and ingredients you’re most comfortable with, and that suit your needs.

The Mosquito Repellent Buying Guide

  • DEET has been studied widely and is believed to be safe and most effective at levels between 30% and 45%, but it can be hard to find sprays in that exact concentration range.
  • Be careful when applying DEET or handling items with the spray on your hands. It will melt certain plastics and synthetic fabrics, sometimes permanently softening them.
  • Lemon eucalyptus has been proven to be effective in concentrations between 30% and 50%, but again, the trick is finding those concentrations on the market.
  • There have been a few allergic reactions recorded to lemon eucalyptus repellent, but the odds of this happening are low.
  • Picaridin is a chemical derived from pepper plants. Sprays of 20% concentration can be effective against mosquitoes, ticks and flies. Unlike DEET, picaridin won’t break down certain materials, so it’s safe to spray on clothing. As with all of these options, keep this repellent away from your eyes and mouth.
  • Botanicals such as peppermint, lavender and lemons have been used for centuries as insect deterrents, but modern studies don’t often rate them as highly as alternatives.