All products on FSAstore.com, the Flexible Spending Account Site, are guaranteed to be FSA Eligible! Respironics Inc SideStream Disposable Nebulizer, Faster Treatment Times The SideStream Disposable Nebulizer offers fast, efficient and economical drug delivery. The Sidestream provides consistent drug delivery time after time and can be used with all commonly prescribed respiratory medications. It can be used for 2 weeks before replacing. Faster treatment times (delivers 2-1/2mL of drug output within 7 min) . Highly efficient (80% of drug output volume is below 5 microns in size) .