Indian Anaesthetic Gas Scavenging (AGSS) Deep Dive — ISO 7396-2 + NFPA 99 + WHO NIOSH + OSHA

Indian AGSS for 8 OT + 4 cath lab demands ₹1850 lakh capex with active scavenging terminal + dedicated vacuum pump + monitoring + optional thermal destruction. ISO 7396-2 + NFPA 99 + WHO NIOSH + OSHA + ACGIH govern. Three failures: passive scavenging instead of active, continuous monitoring skipped, thermal destruction of waste anaesthetic not included (sevoflurane GWP 130 + desflurane GWP 2540).

Indian AGSS anaesthetic gas scavenging deep dive

AGSS (Anaesthetic Gas Scavenging System) — captures volatile anaesthetic from breathing circuit + ventilator-exhaust. Indian OT + cath lab + anaesthesia-bay deploy active AGSS to comply with OSHA + ACGIH + WHO NIOSH limits — N2O 25 ppm + isoflurane/sevoflurane 2-5 ppm. Standards stack — ISO 7396-2:2024 + NFPA 99 + WHO + NIOSH 1996 + ACGIH TLV + HTM 02-01 + IS 7902.

AGSS MEP scope — 8 OT block + 4 cath labs

Three Indian AGSS failures

1. Passive scavenging adopted (cheaper) instead of active — passive AGSS via room exhaust inadequate at high N2O usage. Specify active per ISO 7396-2.
2. AGSS continuous monitoring skipped — anaesthetic gas drift undetected without sensors. Specify N2O + halocarbon continuous monitor per NIOSH + ACGIH.
3. Thermal destruction of waste anaesthetic not specified — sevoflurane GWP 130 + desflurane GWP 2540. Best practice destroys before release. Indian hospitals rarely include — environmental impact + Kigali risk.