Hi! My name is Matthew Christian from Tampa, Florida and on behalf of Expert Village, today I would like to talk to you about the proper use and maintenance of a yard weed eater. Another area of importance that you will want to become familiar with on your gas power yard tool is the air filter. From time to time you will need to remove and replace or clean the air filter. In this particular model, it is rather easily accessible by unscrewing the side cover, couple more turns and we remove the cover and we expose the air filter. This particular unit is fairly new. It's not necessary to clean the filter just yet but if it were, again you are using your yard tool out in the yard and there is a lot of sand and debris flying through the air and it does get trapped and will eventually get trapped and clog this filter up and inhibit the full function of your gas power yard tool. So from time to time, inspect your filter. If it looks like it is getting dirty, some mild household or mild dish detergent in warm water will clean the filter. Also on some air filters, it is necessary to spray a little bit of oil on the filter; some just household WD-40 will suffice. By spraying oil on the filter, it helps trap dust particles a little better but check your filter from time to time, make sure it is clean. If necessary, clean it, dry it thoroughly, spray a little oil on it and reinstall it. By doing so, this will help ensure that your gas power yard tool lasts a long time.