Cream chargers are small canisters crammed with nitrous oxide, used to whip cream right now and with no trouble

https://codysacb755.bearsfanteamshop.com/the-future-of-cooking-with-large-cream-chargers-in-the-house

Cream chargers are small canisters stuffed with nitrous oxide, used to whip cream speedily and really, splendid for desserts and drinks.