Pax Four Vaporizer

• PAX’s most powerful dry herb vaporizer, with up to 50% more vapor than other PAX devices (according to PAX)
• High-output hybrid conduction and convection heater
• 4 heat modes from 374°F to 428°F
• Redesigned bottom-loading oven with a funnel-shaped top
• Up to 5 sessions, or about 50 minutes, per charge
• USB-C charging
• 2-year warranty, plus 1 year with registration

The PAX Four, also known as the PAX 4, is the most powerful dry herb vaporizer PAX has made. It keeps the classic pocket-sized shape and simple one-button controls that made the PAX 3 so popular, then adds a high-output hybrid heater built for dense clouds.

By combining conduction and convection, the PAX Four puts out much stronger vapor than older conduction-only PAX models. PAX says it produces up to 50% more vapor than its other devices, including the PAX Mini and PAX Flow. In our back-to-back testing, the PAX Four’s clouds were noticeably denser than the Flow’s.

The redesigned oven still loads from the bottom like a classic PAX, but the new lid lets more air through, and the funnel-shaped top makes loading quicker. It’s a straightforward dry herb vaporizer with no app to set up. Load it, pick a heat mode and go. See the full lineup in our PAX vaporizers collection.

Specs

• Brand: PAX
• Device Type: Portable vaporizer
• Compatible With: Dry herb only
• Heating: Hybrid conduction and convection, with temperature control and auto shutoff
• Heat Modes: 4 (374°F, 392°F, 410°F and 428°F)
• Oven: Stainless steel, about 0.3g
• Airflow: About 2.5 litres per minute
• Heat Up Time: About 55 to 70 seconds
• Battery: 2,800mAh
• Battery Life: Up to 5 sessions, or about 50 minutes per charge
• Charging: USB-C, about 100 minutes to full
• Controls: One button with LED petals and haptic feedback
• Dimensions: 10.75 x 3.6 x 2.67 cm
• Weight: About 125g
• Warranty: 2 years, plus 1 year when registered within 30 days

What’s Included in the Box

• PAX Four Device
• Multi-Tool
• 3 Oven Screens
• Wire Brush
• Flat and Raised Mouthpieces
• USB-C Charging Cable

Buy the PAX Four in Canada

Choose your colour, check current availability and order from Canadian Vaporizers. As an authorized PAX dealer, every PAX Four we sell in Canada is genuine and fully covered by PAX’s warranty.

We ship from multiple warehouses across Canada, so your order arrives fast. Every package goes out in discreet packaging, and shipping is free on orders over $99.

Everything Else You Need to Know About the PAX Four

Build Quality and Materials

The PAX Four has a lightweight aluminum body with very few moving parts, so it holds up well to everyday carry. It feels solid in the hand without being heavy, and the oven is stainless steel.

The signature PAX petal LEDs are still here. The redesigned oven lid pops off with a side tab and fits securely when it’s back on. The funnel-shaped top of the oven guides your herb straight in.

How does it work?

1. Fully charge the PAX Four before first use.
2. Lift one of the side tabs to remove the oven lid. Tip: pull the mouthpiece off first so the device sits flat upside down while you fill it.
3. Grind your herb medium-fine and fill the oven. Use the multi-tool to gently pack it level with the top. Medium density works best, not too loose and not too tight.
4. Replace the lid and install your mouthpiece.
5. Press and hold the button for 2 seconds. The LED petals glow pink while it heats.
6. Quick press the button to choose a heat mode, then wait 3 seconds or shake it to confirm.
7. After about 55 to 70 seconds, the petals turn green. Sip or rip.

Shake it any time to check the battery. The PAX Four goes into standby quickly once you set it down, so pick it back up between hits to keep it heating. If it ever acts up, hold the button for 7 seconds while it’s on to factory reset it.

Pros and Cons

Pros

• PAX’s most powerful vaporizer, with dense, heavy clouds
• Hybrid heating in the classic PAX shape
• Easy to pack and works right off the bat
• Bottom loading with a funnel-shaped oven
• Biggest battery in the current PAX lineup
• Simple one-button use with no app needed

Cons

• Slowest heat up in the PAX lineup, about 55 to 70 seconds
• Standby kicks in quickly when you set it down
• Tighter draw than the PAX Flow
• Gets hot during longer sessions
• Dry herb only, not compatible with the PAX concentrate insert

Temperature Settings

The PAX Four has four heat modes, shown by the LED petals:

• Petal 1 (Purple): 374°F / 190°C. Minimal vapor for discreet sessions.
• Petal 2 (Green): 392°F / 200°C. Stretches your herb over a longer session.
• Petal 3 (Yellow): 410°F / 210°C. More flavor with smooth vapor.
• Petal 4 (Orange): 428°F / 220°C. The most vapor and the densest clouds.

Orange and Yellow are our go-to settings, while Purple and Green are great for a lighter session. The PAX Four runs hotter than the other PAX devices. Its lowest mode matches the second mode on the PAX Mini 2 and PAX Flow.

PAX’s patented temperature control keeps each mode consistent. For safety, the PAX Four also shuts itself off if it reaches sustained high temperatures, and it works normally again once it cools down.

Features That Stand Out

The high-output hybrid heater is the biggest upgrade. It heats your herb through both contact and hot air, and PAX says it delivers up to 50% more vapor than its other devices.

The redesigned oven is the other highlight. The new lid lets more air through, and the funnel-shaped top makes loading faster and less messy. There are no complicated parts to take apart, so cleaning is just as easy.

Haptic feedback confirms button presses and mode changes, and a quick shake shows your battery level on the petals.

Cleaning and Maintenance

Empty the oven after every session once it’s cool, so leftover herb doesn’t build up.

PAX recommends a full clean every 3 to 5 sessions:

1. Wait about 10 minutes for the oven to cool.
2. Remove the mouthpiece and oven lid, then clear out the oven with the multi-tool.
3. Dip the wire brush in isopropyl alcohol and push it through the vapor path from the top. This also pushes out the oven screen.
4. Move the brush back and forth to clear any buildup.
5. Wipe the oven and lid with a swab dipped in isopropyl alcohol.
6. Soak the oven screen in isopropyl alcohol for 15 minutes.
7. Let everything dry completely before putting it back together.

If the draw starts to feel tight, clean the screen first. To replace a screen, press the round end with the multi-tool to eject it.

Flavor and Cloud Performance

The PAX Four is built for heavy clouds. In our testing, it put out far thicker vapor than we expect from a weed vaporizer, and it worked right away without any special packing. The herb came out some of the darkest we’ve seen from a PAX, which is a good sign it’s extracting well.

The draw is on the tighter side, and you can feel the cloud build as you pull. The lower modes lean into flavor, while Orange delivers the heaviest hits.

Accessories And Parts That Fit

The PAX Four comes ready to go with spare screens, a wire brush, a multi-tool and both mouthpieces. A spare PAX Multi-Tool is handy to keep in a bag or drawer for packing and cleaning.

Browse more in our PAX parts and accessories collection.

Where This Fits in Your Setup

The PAX Four is the most powerful PAX and our favourite of the lineup. For the most open draw, a Bong Mode and the fastest charging, look at the PAX Flow, and see our full PAX Flow review. For the smallest, simplest PAX, choose the PAX Mini 2.

Comparing models? Read our PAX vaporizer comparisons or see how PAX stacks up in our PAX vs Storz & Bickel comparison. New to hybrid heating? Our guide to conduction vs convection vaporizers explains how it works.

Warranty

The PAX Four is covered by PAX’s 2-year limited warranty. Register it on pax.com within 30 days of purchase to add another year, for 3 years of total coverage. Accessories like screens and mouthpieces aren’t covered.