# Permeation devices for calibrating air quality monitoring equipment · FAA (air transport) — Flying with restricted items: FAA, TSA and IATA baggage and air cargo rules For Permeation devices for calibrating air quality monitoring equipment, authority is FAA (air transport); restriction type is restricted; scope is checked baggage only; not allowed in carry-on; conditions is Total quantity of hazardous materials in the device limited to 2 ml; device and packaging cannot weigh more than 30 kg; must meet 49 CFR 173.175, recorded from its source on 2026-08-10. - **Item or substance:** Permeation devices for calibrating air quality monitoring equipment - **Authority:** FAA (air transport) _(our reading, not quoted from the source)_ - **Restriction type:** restricted _(our reading, not quoted from the source)_ - **Scope:** checked baggage only; not allowed in carry-on _(our reading, not quoted from the source)_ - **Conditions:** Total quantity of hazardous materials in the device limited to 2 ml; device and packaging cannot weigh more than 30 kg; must meet 49 CFR 173.175. ## What the source says > Quantity limits: The total quantity of hazardous materials in the device is limited to 2 ml (0.07 oz). The device and its packaging cannot weigh more than 30 kg (66 lbs). The device must be constructed and packaged in accordance with the requirements found in 49 CFR 173.175 ## Source - https://www.faa.gov/hazmat/packsafe/permeation-devices Last verified: 2026-08-10. Review by: 2027-08-10. Part of [Flying with restricted items: FAA, TSA and IATA baggage and air cargo rules](https://referencesource.org/air-travel-item-restrictions/).