Wow!that was risky! Use never do that! Yeah it's more humid,summer months,and dry air,more dirty,January through end of march. Sand on street,snow,ect.pollen. Used to be much dirtier! Way back,1994? I bought a gram air filter,for a 85 Isuzu I mark hatchback. After a year maybe,looked at it,used n black.I drove all over the place,as a 20 year old.God only knows what the actual mileage was,I did on that. Last ca r with 4 years in air filter,fram...was a 95 neon I had. 2000-2013 then it badically,fell apart.the trim, everything.despite maintenance,and brake libes,headga skets,ect.car basically was just falling apart. The area I live,used to be dirtier.it's cleaned up a lot since.