Immersion Proof Breathers Frequently Asked Questions

  • Do immersion proof breathers keep out water vapor?
    No. They block the passage of liquid water but do not stop water vapor.

  • How long can the breather be submerged?
    That depends on the rating of the specific breather. Generally, the submersion time is a minimum of one hour.

  • How deep can the breathers be submerged?
    That depends on the rating of the specific breather. However, there are breathers that are rated to a depth of 1 meter.

  • Do immersion proof breathers come in different sizes?
    Yes. The smallest breathers that we currently offer are the mini-immersion breathers. Please contact AGM to ask about custom sizes.

  • What kind of flow rate can I expect with a standard immersion proof breather?
    This depends on the size and type of breather. Immersion breathers generally have low flow rates (a few cc to a few hundred cc per minute).

  • Do immersion proof breathers open and close automatically?
    No. Immersion proof breathers are also referred to as “free breathers” as they are always open.