Does it have a filter so you can use this to blow dry a car and not scratch the finish?

Dear valued customer, WELCOME TO A BATTERY- POWERED LIFE! Thank you for taking interest in our Litheli 40v lithium ion battery powered leaf blower. Unfortunately, our leaf blower does not have an air filter. Our technology is based on a direct flow, which preserves the brushless motor’s lifespan. However, our leaf blower is strong enough to quickly dry your car and the variable speed makes it gentle enough so that it won't damage your car. If you have any further questions, feel free to reach out to us. Thank you for taking interest in our product line of reliable battery powered tools! Best, Litheli Customer Support

Is it easy to clean the leaf blower after use?

It really depends on your air quality. If you live in the caldera of a volcano, you may get some build up in the wind tunnel. If you live anywhere else, you probably won’t ever have to clean it, as it just blows air and never actually touches anything but the air. I suppose if you set it down in some dirt it could get a bit on it. Maybe wipe it off with a cloth.

I have 20v litheli lawn mower. can 40v battery of litheli blower can work with 20v lawn mower ?

20V battery works with 20V tools, and 40V battery with 40V tools. Litheli offers a max. 5-year warranty on the tools and a max. 3-year warranty on the battery and charger.

Can be used to clean a tractor trailer reefer or van ?

Hi, Yes, our leaf blower would be suitable to clean a trailer or van since it equipped with variable speed and turbo, you may control the speed of the blower for low or high power. Litheli Customer Support