10 Best Water Purifiers in the Philippines 2025 | Megafresh, Brita, and More

Reverse Osmosis (RO) purifiers are directly connected to your plumbing. They're especially effective in removing Total Dissolved Solids (TDS), which is the amount of inorganic and organic material in your water. Some examples of these are trace metals and bacteria. These are filtered out with a semi-permeable membrane, and current RO systems can have a filtration rate of up to 99% or higher.

However, these systems don't clean out water mixed with foreign liquids like chlorine and pesticides. As such, it's best to pair these systems with activated carbon to remove over 70 kinds of these contaminants. 

Another downside is the amount of water waste produced. Approximately four liters get discarded for every one liter purified. Fortunately, you can use the water waste for other tasks like washing clothes and watering plants to cut back on your water bill.

Other than TDS, tap water can be contaminated by bacteria and other waterborne organisms. An ultraviolet purifier, as its name suggests, contains a UV lamp where water passes through for purification. The ultraviolet light destroys most of these pathogens, making sure that your drink will be disease-free.

However, most of these types don’t come with a filter. This makes them less efficient in cleaning out solids in the water like dust and sand. Plus, the dead bodies of the pathogens remain in the purified water—harmless but can be off-putting. As such, ultraviolet purifiers are ideal if your water quality has a TDS level below 100.

A gravity-based purifier is as precise as it sounds. The device is composed of two chambers: one above and one below. You pour the contaminated water into the top chamber, and using gravity, it slowly drips into a filter. By the end of the process, you’re left with purified water in the bottom chamber.

These systems are convenient because of their simplicity. They come in many sizes, thus supporting various use cases. Plus, because they don’t need electricity to function, you can use them anytime. However, take note that these can be less effective than their electrically-powered counterparts. As such, it’s best to use these for relatively cleaner water, with a TDS level below 200.

Like reverse osmosis purifiers, an ultra-filtration device uses a membrane for purification. However, as it uses screen-like fibers, it only succeeds in capturing large sediments and bacteria. This makes it inefficient in filtering hard water, which is water with a high mineral content like magnesium and carbonate salts.

You’ll be glad to know, though, that these systems work with no electricity. They also come in varying sizes, making them capable for several storage locations. Just remember to regularly replace the filter at least twice a week to ensure optimum purification. 

These are the newest trend in the water purification world. They work by emitting UV light through a light wand sticking out of the device. It then kills any harmful microorganisms within a liter of water. Light, compact, and easy-to-use, these products are best used on the go.

Just remember that these don’t come with a built-in filtration system. That means that the water will still be contaminated with sediments, minerals, and the dead bodies of the microorganisms. Thankfully, you can get external filters for maximum protection—or check out other form factors below.

Pitcher purifiers are not connected to your plumbing, making them portable and handy. This is best for people who want a no-nonsense system, since you just pour water and let the device do the work.

However, when going for these types, we recommend sticking to an ultraviolet or reverse osmosis model. These ensure that all microorganisms are killed. Unfortunately, with other variants, the contaminants will still be active, just stuck to the filter. This is riskier, as they can seep into the water after some time. 

On-tap purifiers have become popular because of their simplicity. Most simply attach to your faucet and can filter out 378 liters before needing a filter replacement. Plus, because they’re easily detachable, you can switch between purified and unpurified water depending on your use case.

The downside is that many of these suffer from durability issues. Cheaper models have plastic housing, making them break easily under high pressure and high-temperature water. Plus, despite their universal design, some users have experienced a loose-fitting product, so it’s best to measure your faucet first.

As the name implies, countertop filters sit beside your sink. There are several variants available, though the most common are either ones that attach to your faucet or one that’s filled with water. Either way, they shine as a cost-effective purification system.

They can, however, be a source of clutter. Depending on the product, they can take up a significant chunk of your sink space. Plus, most of these are electrical, so you’ll have to be more careful when handling them to avoid electricity-related accidents.

Under-the-counter filters are often installed under your sink. They connect directly to your plumbing and send the purified water to their own specially-installed faucet. Furthermore, while performance may vary, these generally surpass the purification from other systems. Some products even claim to reduce 99% of contaminants.

These, however, require a more in-depth installation. Most of the time, users would rather hire a professional rather than risk damaging their plumbing. Plus, these systems require a reservoir, so make sure that your sink has enough space underneath.