https://www.siliconvalley.com/2022/02/15/as-state-efforts-stumble-santa-clara-county-and-san-jose-eye-regulations-on-nitrous-oxide/

Those odd-looking, eraser-sized nitrous oxide canisters may soon be swiped off the shelves of some of the region’s smoke and vape shops.

Both Santa Clara County and San Jose are considering rules that would tighten the sale of the gas, which local lawmakers deem a risk to public health and claim is too easily available to buy in some of the area’s stores that sell other inhalation products like tobacco and marijuana.