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One of the most common problems with hvac equipment is poor ventilation. This problem makes your hvac equipment work like inefficient outdated models which can waste plenty of your money. The two most common reasons behind poor venting: inadequate duct sizing as well as a dirty return air filter. Much like real soldiers, the smart sniper keeps his equipment in tiptop shape as a way to gain an advantage about the enemy. A soiled and dirty rifle will affect its accuracy and efficiency. Regular cleaning with the Airsoft sniper rifle is essential, along with any other weapons he carries. Buy a proven Airsoft gun cleaner like a silicone spray and use it every 2000 to 5000 shots.