How to Choose a Water Purifier for Home?

Clean drinking water is essential for good health, and choosing the right water purifier ensures safety from harmful contaminants while matching your home’s water quality, usage, and budget.

Types of Water Purifiers

Different technologies remove specific contaminants based on water type and quality.

RO (Reverse Osmosis) Water Purifier

RO purifiers use a semi-permeable membrane to remove dissolved salts, heavy metals, and impurities. Ideal for high TDS or hard water, they provide safe, great-tasting water but may also strip beneficial minerals unless paired with a mineral retention feature.

UV (Ultraviolet) Water Purifier

UV purifiers use ultraviolet light to kill bacteria, viruses, and microbes without altering the water’s taste. They’re best for low TDS water with microbial contamination and require electricity to operate effectively, making them unsuitable for high TDS or muddy water.

UF (Ultra-filtration) Water Purifier

UF purifiers use a membrane to filter out bacteria, cysts, and other microorganisms without electricity. Best for low TDS water, they work even with turbid water and keep minerals intact but are not effective against dissolved salts.

Activated Carbon Water Purifier

Activated carbon purifiers remove chlorine, pesticides, bad taste, and odor from water. They are ideal for municipal supply water with low TDS, improving taste and smell, but cannot remove dissolved salts or microorganisms alone.

Checklist Before Buying a Water Purifier

Evaluate water quality, technology, storage, budget, maintenance cost, and service availability to ensure the purifier meets your family’s needs and long-term performance expectations.

Water Quality & TDS Level

Before buying, test your water’s TDS level using a TDS meter or laboratory report. High TDS water above 500 ppm requires an RO purifier, while low TDS water under 300 ppm works best with UV or UF systems. Correctly matching the purifier to your water quality ensures optimal performance, better taste, and safe drinking water, while avoiding unnecessary expenses on unsuitable purification technologies.

Check Your Water Supply Source

Knowing your water source—municipal supply, borewell, or a mixed source—helps determine the type of contaminants present. Borewell water often contains high TDS and heavy metals, making RO systems ideal. Municipal water may have chlorine and microbial contamination, best treated with UV or activated carbon purifiers. If your water supply changes seasonally, a combination system such as RO+UV+UF ensures consistent purification performance throughout the year for safe drinking water.

Size of Your Family and Water Usage

Household size directly affects the purifier capacity needed. A small family may need a compact unit with moderate output, while a large family should choose higher purification capacity with larger storage tanks. Consider daily cooking and drinking needs as well. Underestimating capacity can lead to shortages during peak hours, while oversized systems may waste water and energy. Choosing the right size ensures efficiency, convenience, and continuous availability of purified water.

Purification Capacity & Storage

Purification capacity is measured in liters per hour (LPH), indicating how quickly the purifier can process water. Higher capacity models suit larger households and areas with high daily water needs. Storage capacity ensures you have a ready supply during power cuts or peak usage times. For small families, 7–8 liters may suffice, but larger homes may need 10–12 liters. Balancing purification speed and storage prevents shortages without overloading your kitchen space.

Electric vs Non-Electric

Electric purifiers, such as RO and UV models, require constant power to operate and are best for high TDS or contaminated water. Non-electric purifiers, like UF and activated carbon filters, work without electricity and are ideal for low TDS areas or regions with frequent power cuts. Your choice depends on water quality and electricity availability. Selecting the right type ensures uninterrupted access to safe drinking water without unnecessary dependency on electrical supply.

Water Purifier Installation Space

Before purchase, measure your available kitchen or utility area to determine whether a wall-mounted or countertop model is best. Wall-mounted purifiers save space but require proper support and plumbing, while countertop units are portable but occupy counter area. Ensure proximity to a water inlet and drainage outlet. Planning installation space avoids future fitting problems and keeps your kitchen organized, allowing the purifier to function optimally while blending with your interior layout.

At Shift Tech BD, we provide skilled technicians, quick response times, authentic replacement parts, and dependable service to keep your water purifier running efficiently. Our solutions ensure your business consistently enjoys high-quality water.

We offer professional water purifier installation and maintenance services throughout Bangladesh, guaranteeing optimal performance and complete customer satisfaction. Key areas we cover include:

Ease of Water Purifier Use

A water purifier should be user-friendly for all family members. Look for simple dispensing options, easy-to-read indicators, and straightforward controls. Models with quick filter access make cleaning and maintenance simpler. Automatic shut-off features prevent overflows, and transparent tanks let you monitor water levels. A design that is intuitive to operate reduces dependency on others, ensures proper usage, and increases the purifier’s lifespan by encouraging regular upkeep without technical complications or extra effort.

Filters Offered By a Water Purifier

Check the stages of filtration your purifier offers. A good system typically includes sediment, activated carbon, and post-carbon filters, with RO, UV, or UF technology depending on water quality. Multi-stage filtration removes physical, chemical, and biological impurities effectively. More advanced systems may also include mineral retention filters for healthier water. Understanding the filter types ensures you get the right protection against contaminants while maintaining the taste, odor, and nutritional quality of water.

Maintenance & Filter Replacement Cost

Maintenance is an ongoing part of owning a purifier. Check the recommended filter replacement frequency and annual maintenance contract (AMC) charges. RO membranes may last 1–2 years, but carbon and sediment filters require more frequent changes. Choosing a purifier with affordable and easily available spare parts lowers long-term costs. Ignoring maintenance can reduce performance and risk health issues, so consider total annual expenses before purchase to ensure sustainability and safe water.

Brand & Warranty Service Network

A reputed brand often guarantees better build quality, reliable purification, and longer-lasting components. Check warranty terms for both parts and labor, and ensure a strong service network exists in your area. Quick access to trained technicians helps with timely filter changes and repairs. A weak service network can cause downtime, leading to unsafe water. Selecting a trusted brand with proven service support ensures long-term performance and peace of mind for your family.

Budget & Long-Term Value

Budget should cover both initial purchase and recurring costs like filter changes, electricity, and AMC. Avoid focusing only on the lowest price; instead, weigh features, durability, and efficiency. A slightly higher investment can mean fewer breakdowns and better water quality over time. Long-term value comes from consistent performance, low maintenance issues, and good service support. Spending wisely at the start ensures years of safe, great-tasting water without constant repair headaches or extra costs.

Check User Reviews Before Final Decision

Reading verified customer reviews helps you understand real-world performance, durability, and service quality. Look for repeated complaints or consistent praise to identify strengths and weaknesses. Avoid relying solely on product descriptions or advertisements. User experiences often reveal hidden issues such as slow service, high maintenance costs, or unreliable filtration. Checking reviews ensures you choose a purifier that meets expectations in practice, not just on paper, saving you from future disappointments.

Additional Features to Look For

Smart features and convenience add more value to your water purifier.
Water Level Indicator
Shows how much purified water is available, helping manage usage and refills.
Digital Displays
Provides real-time information about water quality, filter life, and system alerts.
Smart Features
Includes app connectivity, remote monitoring, and automated alerts for filter changes.
Mineral Retention Technology
Preserves essential minerals like calcium and magnesium for healthier, better-tasting water.
Hot & Cold Water Dispensing
Adds convenience for making beverages instantly or enjoying chilled water anytime.
Energy Efficiency
Consumes less electricity, reducing operating costs while being environmentally friendly.
Common Mistakes to Avoid
Buying without testing water quality.
Ignoring maintenance costs.
Choosing looks over performance.
Not checking service availability.
Overlooking storage capacity needs.

Conclusion

Choosing the right water purifier depends on your water quality, needs, and budget. The right decision ensures safe, tasty water for your family every day.

Frequently Asked Questions About Choosing a Water Purifier for Home

Question: Which type of water purifier is best for home?

Answer: The best type depends on your water quality. RO suits high TDS water, UV is best for microbial contamination, while UF works for low TDS without electricity.

Question: Whose purifier installation and maintenance service is best in BD?

Answer: ShiftTechBD provides the best purifier installation and maintenance service in Bangladesh, offering professional setup, timely filter replacements, and reliable after-sales support to ensure your water purifier works efficiently year-round.

Question: What are the 5 best water purifier brands in BD?

Answer: The top five water purifier brands in Bangladesh are Kent, Pureit, Walton, Vision, and Miyako, known for reliability, effective purification, advanced features, and strong after-sales service across different regions of the country.

Question: Which water purifier is best in BD?

Answer: Kent Grand Plus is among the best in Bangladesh, offering RO+UV+UF purification, mineral retention, large storage, and strong after-sales service, making it suitable for various water sources and household needs.

Question: What is the No. 1 water purifier for the home?

Answer: Kent Grand Plus is considered the No. 1 purifier for home use, featuring advanced multi-stage purification, essential mineral retention, ample storage, and dependable service support for consistently clean, safe drinking water.

Question: Which is better: UV or RO?

Answer: RO is better for high TDS and hard water, removing dissolved salts and heavy metals. UV is better for low TDS water, killing bacteria and viruses without altering minerals.

We not only specialize in water purifier installation and maintenance services but also provide a wide range of additional solutions to meet customer needs. Our services include: