NIOSH approval for Apollo HP series caps total breathing-air hose length at 300 feet. Beyond that, pressure drop reduces flow below the 15–20 CFM the hood needs. If you need more distance, add a second CPF closer to the work and split the supply.

Yes for sequential use within the same shift (operators rotating positions), provided the inside is cleaned and disinfected between users per OSHA 29 CFR 1910.134(h)(1). No for simultaneous use.