Invatech Italia Mosquito fogger Model 870 Mister Duster Mosquito Sprayer Backpack Sprayer Cold Fogger

Concerns about weight are legitimate. It's 60 pounds with a full tank of fuel and pesticide, making it cumbersome to put it on your back. A pedestal or tail gate are good solutions for that once it's started. Works great though. Mosquitos are more than plentiful at a home on the water. Using this fogger with a Bifenthrin product eliminates almost every insect for an extended period. Assembly requires just a little more mechanical knowledge than what's in the instructions, but overall it's very straightforward. Runs great. Very satisfied with the product. Buy a mask.

I have now used this system since last June 2025. We had a warm early Nov so I used for the final time. I began my next treatment in early April. When I stored my machine I added 1 oz of each Ethynol shield and Mechanic in A Bottle. It cranked on the 2nd pull. I spray every 3 weeks with exceptional results. The company provide excellent service and extra parts that will probably be needed in the future. The only other part I wish they had included is the atomizer unit on the end of the tube. This is a terrific it. I have several friends who have purchased one on my recommendation and they love it.

So far so good. The other reviews are right. This is very heavy. I have to set it on a bench and the put it one. It’s top heavy and backward to put on normally. I’m 6-2 230 and lift weights all the time and I struggle with it. If your an older lady or gentlemen just be aware you will need help putting it on. The motor cranks easy.

a good machine once adjusted right

I have to admit I was a bit skeptical. I was looking at a $2000 Stihl fogger then saw this one on Amazon. We have really bad mosquitos and are surrounded by woods. After assembly I mixed up the 2cycle gas/oil, primed the bulb 10 times, closed the choke and it started on the second pull with no carb Adjustments ( Wisconsin sea elevation). I let it idle for 20 -30 minutes to break in the engine. Now, I set the flow meter ( near the throttle trigger to "1") on the first test and it was prefect for 4 gallons covering 10,000 sq feet of bushes and trees. here's the challenge! The fogger only weighs 25lbs but with 4 gallons you're now at 60lbs!!! So put it on the back tail gate of a pickup or a folding table, sit on a stool, strap in, adjust straps ( while it's running) be careful standing up because the first few steps will be like a drunken sailor!!! It takes a bit to get your balance because it's very top heavy. It worked very good blasting a fog 20-30 feet deep into the woods. ( do not use gas containing ethanol, it will destroy the carb). It seems very well made and I'm happy with it.

I have put off buying a real mosquito fogger for years. This year, I bought the bullet, placed it in my cart, and, on a whim, pressed "purchase." This year has been exceptionally bad due to mosquitoes. Seriously, I swore a gang of mosquitoes had tried to carry my poor cat away one afternoon. No lie. Well, once I put the fogger together, which was no issue, I armed myself with the best-rated mosquito spray and went to battle. Pew-pew-pew, red leader down. I took all of them out. I am now on my back patio writing this without the threat of life and limb from mosquito kamikazes. In all honesty, it has worked well. No issues. A previous review said it was hard to assemble, but I did not have that issue. If you have put together kids' toys around Christmas, you will have no issue here. One review stated that it was heavy. Well, uh, duh. Think about it. The base unit is 22 lbs, and then you add 4 gallons of spray, which would weigh another 33 or so lbs. Overall, this would be 55 lbs. Not horrible, but it would be troublesome for small-framed people. I found that proper adjustment of the straps and keeping the unit high on your back helped. But, shouldn't this be expected? Maybe on Mars, water is lighter due to the changes in gravity. I wish I had bought it 4 years ago when I originally picked it out. Don't waste time on smaller foggers/disinfectors.

For the price it should have been shipped assembled. Wasn't expecting it to spend an hour putting it together after spending $500. Had so many pieces and different ways to put it together based on which way you wanted to use it. Works okay but definitely would have never purchased had it been explained the consumer had to put 50% of it together when it arrived

Overall it works as good as a Stihl at one quarter of the price, the liquid feed is manual on and off and the liquid tank is larger than a Stihl. It starts on the first pull and runs smoothly. Assembly was very easy, opened the box put the handle together and was spraying within 15 minutes. The on and off switch is on the cheaper side of quality but works fine for now Came with a lot of spare parts like a spare pull start, quarter turn valve, hose. The liquid tank is a little high on the backpack so it makes it top heavy so when you fill the tank with water it adds 32 pounds on top of your shoulders. I would recommend this sprayer over a Stihl brand for the weekend home sprayer person.