Update 2021. Finally found the filter, for all locations Walmart, HLVBF10. Bought a BLACK+DECKER Handheld Cordless Pet Vacuum White (HLVB315JP07) for cleaning the lighthouse and it works great for us. The sound of the jet taking off is a bit annoying and the charging time is a little long but works well and the electric pet brush works as advertised. HOWEVER, if you don't want to pay $20 on Ebay for a filter, you're out of luck, I've spent hours trying to find filters for this unit, they're just not available anywhere, B&D website, Revain, Walmart, Lowes, etc. d . etc. I use it almost every day and I don't dare wash the thin filter, I shake it out and then vacuum it with a household vacuum cleaner to clean it. I am very disappointed and would not recommend this machine to anyone.