InstantVap Original Oxalic Acid Vaporizer

The InstantVap 18V Original is the full-size unit that started the line, and it's the cordless oxalic acid vaporizer thousands of beekeepers already run. It treats a hive in about 25 seconds on your own tool battery — no cords, compressors, or generators to haul across the yard. Designed in Hungary and serviced in the USA, it's built around a rugged stainless steel body and a built-in voltage meter that shows your battery level in real time, so you're never guessing how many hives you have left on a charge.

We'll be straight with you about the lineup: the InstantVap 18V Compact treats at the same speed, costs less, and adds spare plunger storage in the handle. The Original's edge is that live voltage readout and its larger full-size build. If watching your battery level matters to you, get the Original. If it doesn't, the Compact does the same job for less.

Every Original carries a 2-year parts warranty, with all repair service done in-house in the USA.

Key Features

Fast hive treatments — vaporizes a 2 g dose in about 25 seconds and a 4 g dose in about 45 seconds.

See your battery level — the built-in voltage meter shows remaining power before and during every treatment.

Runs on batteries you own — works with DeWalt, Milwaukee, Makita, and Ridgid slide-in tool batteries, so there's no dedicated power pack to buy.

Dial in your dose — the adjustable plunger covers 1–4 g of oxalic acid per hive.

Protects your battery — a built-in protection circuit prevents overloads and extends the life of both the vaporizer and your battery.

Built to last — tough stainless steel body with a replaceable stem for long-term use.

Works With

• DeWalt XR or FLEX 20V and 20V/60V MAX slide-in batteries

• Milwaukee M18 slide-in batteries

• Makita 18V LXT slide-in batteries

• Ridgid 18V slide-in batteries

• Ryobi batteries, using the Ryobi Battery Adapter on the DeWalt version

Order the version that matches your battery brand. Any capacity on the matching platform will power the unit — a smaller pack just means fewer hives before you recharge. For real-world use, we recommend 5Ah or larger.

Does Not Work With

• DeWalt Powerstack batteries

• Post-style (stick) batteries — slide-in style only

• InstantVap Lite dispensers, caps, or outlet parts — the Lite uses its own components

Note: Battery and charger are not included.

How Many Hives Per Charge?

Lorob Bees' runtime estimates at 65°F (room temperature):