I’m not a huge fan of calling 800-numbers to buy accessories and replacement parts for various products and purchases. I had an office chair a decade ago that I loved dearly, but the arm rests were notorious for cracking where one of the bolts was located. I went through four of those arm rests before throwing the chair away for good. Each time I wanted a new arm rest, I had to flip the chair and located the special 800-number near the serial number and other warranty information. Although the arm rests were free and overed by the device’s warranty, it would have been much easier to have access to these parts on a website or phone app. I ran into the same exact issue with these air purifiers that I bought six months ago. I am trying to keep my indoor air as clean and free of harmful contaminants as much as I possibly can. They’re amazing machines that do what they advertise, but they have disposable HEPA filters that need to be replaced after five to six months of constant use. I figured that the manufacturer would either sell them at the store where I bought the air purifiers, or would at least have a store on their website with parts and accessories. Unfortunately, I was forced to call another strange 800-number just to get new filters for my air purifiers. I was connected to a call center overseas, but they pulled up my model and had the part ordered in minutes. It arrived at my house later that week. In the end, it wasn’t as hard of a process as I initially expected and I am simply happy to have clean air purifiers once again.