The "Perri-Air" joke in Spaceballs (1987) features Mel Brooks as President Skroob, who inhales air from a can labeled "Perri-Air" to survive on Planet Spaceball, which has depleted its atmosphere. This gag parodies bottled water brands like Perrier while satirizing environmental exploitation. The film, released on June 24, 1987, stars Bill Pullman as Lone Starr, John Candy as Barf, Rick Moranis as Lord Dark Helmet, and Daphne Zuniga as Princess Vespa, among others. The joke critiques consumerism by framing breathable air as a commodified product, mirroring real-world trends like seltzer waters and highlighting absurdity.

A magazine ad for Planet Druidia’s greatest export - their pure salt-free, calorie-free air. No H, just the O - as in Oxygen!

I found the image from RPF (https://www.therpf.com/forums/threads/from-within-ehp-production-made-spaceballs-perri-air.351002/) who found the print blocks for the Perri-Air label on a random shelf under a stack of Taxi Cab Door Decals.

I took an image of that found decal - which I can only assume was made for the movie, (even though Mel uses a can of Perri-Air on screen) and made the fake ad to look like an ad you’d find in a magazine on Planet Spaceball.