Philips Respironics Air Filters for InnoSpire Mini, Mini Elite & Micro Elite Nebulizer Compressors - 4 Pack
USAGE: These filters are disposable. For best performance filters should be replaced every three months or when they appear dirty, whichever is sooner. The machine should never be operated without the filter in place or with a clogged (dirty) filter. For complete instructions review the documentation that came with your equipment.