Cleaning filters in our air-conditioning units is something done every 3 months with the regions air now dirty, unlike earlier years. We notice on net curtaining how much more dirt is in the air!
Philips was one of the best brands, I still have products 50 years old that work. My Mom worked at their Philips Martindale factory, later the staff shop in Ellis Park, always supported their products.
Watched a show recently into excellent R&D they did, bad decisions along the way now selling off most of this great company.
!BEER
Yeah, it's a pity, they seem to have sold or shut down most of their operations in recent years.
Modern move in industry, manufacturing in various places throughout the world, old business as we knew it is all but gone.