The 6 Best Vacuum Chambers
This wiki has been updated 5 times since it was first published in November of 2018. Vacuum chambers depend on electric pumps to remove air and other gases from their sealed interiors, creating a pressurized atmosphere within the confines of the unit and allowing users to, among other things, degas expoxies, stabilize woods and extract essential oils from organic materials. Our selection of recommended options range in size from two to five gallons. When users buy our independently chosen editorial selections, we may earn commissions to help fund the Wiki. Skip to the best vacuum chamber on Amazon.
June 17, 2019:
Regarding size: The units I rated range from two-gallon to five-gallon, which seems to span the spectrum of common sizes in this category (there are some smaller vac chambers available, but given the level of utility you lose for a small savings, it hardly seemed worth including them). I made a conscious effort to include an assortment of sizes, to help show what's out there, but if you see a design you like in a size that doesn't suit your needs, don't despair – most of these manufacturers offer this product in several sizes, with smaller/larger versions that are otherwise completely cookie cutter. It would be impractical to rate multiple sizes of the same product for this list, but dig a little deeper and there's a very good chance that the chamber you like is available in just the right size for you.
It's also important to note that these products will all require a separately-purchased vacuum pump to function. If you already own a vac pump, and maybe you're just looking to take a step up from your current DIY setup, then these will do just nicely. If not, check and see if your favourite option is offered by its company as part of a kit, including a pump, as many of them are. The flat price might end up saving you a few dollars and considerable inconvenience.
The offerings selected for these rankings might appear to be superficially similar, and indeed in many respects they undeniably are, but here's a a couple major differentiators you'll want to look out for:
Firstly, the orientation of the units' gauge and fittings. While most these offerings have the apparatus mounted to their lid, some are mounted directly to the chamber and claim to offer a superior seal thereby. Though I didn't come across anybody who accused that claim of being false, it should be considered that a side-mounted inlet may lead to problems for users who plan on, for instance, stabilizing wood, soaking it in cactus juice or another resin directly inside the chamber. In the event that your pump sucks up some of that solvent, you might be in trouble.
And, lastly, speaking of stabilizing wood, if that's part of your plan for this purchase, you might want to consider favoring an offering that comes with a tempered glass lid, as some of the acrylic lids on these units are not suitable for exposure to the solvents used during this process. Artisans of wood should also be wary of the Yescom Two-Gallon. Although the item's Amazon page identifies this offering as being suitable for stabilizing wood, the company's website warns that its chamber is incompatible with several stabilizing resins and other solvents.