Two ozone generators are sitting side by side in the same airborne purification niche, but they're aimed at different electrical setups. The 220V 3g White Quartz Tube Ozone Generator leans toward stationary, lower-output water and air treatment, while the 110V 7G Ozone Generator Quartz Tube Air Purifier (with included power supply) targets broader whole-room, car, and fridge use at a lower listed price. Matching voltage and output to your intended job is the real decision.
Quick Verdict
If you have a 110V outlet and want the most ozone output for the money, the 110V 7G Ozone Generator Quartz Tube Air Purifier(Water treatment) + Power Supply is the stronger pick. It lists more applications, includes the power supply, and costs USD 33.99. If your installation is 220V and you prefer a console-style unit with a 2022 build, the 220V 3g White Quartz Tube Ozone Generator is the matching choice at USD 37.69.
Comparison at a Glance
| Product | Listed price | Ozone output | Voltage | Form factor | Price bar |
|---|---|---|---|---|---|
| 220V 3g White Quartz Tube Ozone Generator For Water Air Purifier Sterilizer | USD 37.69 | 3g/hr | 220V | Console | |
| 110V 7G Ozone Generator Quartz Tube Air Purifier(Water treatment) + Power Supply | USD 33.99 | 7g/h | 110V | Tabletop |
Where Each Product Wins
- Choose the 220V 3g White Quartz Tube Ozone Generator if your use case is tied to a 220V supply, you want a console-style unit, and a lower 3g/hr output is enough for the job. It's also the one with a white quartz tube and a 2022 manufacture year.
- Choose the 110V 7G Ozone Generator Quartz Tube Air Purifier(Water treatment) + Power Supply if you want the higher 7g/h output, need a portable tabletop unit, and want the power supply included. It carries the lower listed price and is rated for whole-house, whole-room, car, and refrigerator use.
Product Notes
220V 3g White Quartz Tube Ozone Generator For Water Air Purifier Sterilizer

This is the 220V option in the pair, so it's best considered when your electrical setup matches that standard. It comes in a console form factor, was manufactured in 2022, and uses a white quartz tube. The 3g/hr output is noticeably smaller than the other unit's, which makes it more appropriate for targeted purification rather than whole-room coverage. The listing describes high efficiency, stable performance, low power consumption, and easy installation, so it fits a fixed installation that doesn't need to be moved around. Its main drawback is the 220V input: if your home runs on 110V, this isn't the direct plug-in choice. At USD 37.69, it's also the higher-priced of the two.
110V 7G Ozone Generator Quartz Tube Air Purifier(Water treatment) + Power Supply

This unit is the more portable and higher-output pick. The 110V input works with 110V outlets, and the 7g/h ozone output is more than double the 3g/hr of the other listing. It bundles the generator with a high-voltage adjustable power supply, which removes an extra purchase step from the equation. It's listed for whole-house, whole-room, car, and refrigerator use, making it the more versatile option for multiple spaces. The tabletop style, metal build, and quiet-operation feature reinforce that it's meant to be placed where you need it. The main limitation is the opposite voltage problem: it won't directly suit a 220V setup. At USD 33.99, it's the lower-priced unit.
Final Choice by Use Case
For 110V households or spot treatment: The 110V 7G Ozone Generator Quartz Tube Air Purifier(Water treatment) + Power Supply gives you more output, a power supply, and a lower price.
For 220V installations with a fixed spot: The 220V 3g White Quartz Tube Ozone Generator For Water Air Purifier Sterilizer is the matching voltage choice and a 2022 console-style unit.