Hi-Flow suction canisters feature an integrated Aerostat filter with >99.99% bacterial efficiency Self-sealing lid provides a leak-resistant seal Mechanical shutoff valve helps prevent overflow and contamination Canisters also include large, easy to read graduations and a frosted panel writing area when needed Most Hi-Flow canister sizes can be used in conjunction with Bemis Quick-Drain, but the 800 cc size is not compatible Disposable, single use, nestable for storage BPA and DEHP free A Non-Latex