Unless you have a Phillips Respironics, in which case it helpfully adds bits of foam (pre-recall) or formaldehyde (post-recall) to your air stream. I realize th

Unless you have a Phillips Respironics, in which case it helpfully adds bits of foam (pre-recall) or formaldehyde (post-recall) to your air stream. I realize that Phillips says it's under limits, but they aren't really trust inducing right now…