I bought your first mattress only product a long time ago when OPah had her show and loved it but the one I bought was very hard to take apart and the piece where the filter is when it is removed the piece bends and I don't know if I should get another one because it's hard to pull out. Can you let me know if there is an easy way to remove the filter from the canister? Also the one I bought for my mattress seems to be stronger. gratitude