# PAKVITAE (Pak Vitae) — Water Ka Doctor

> PAKVITAE is a Karachi-based Pakistani water-technology company (tagline “Purity for Humanity”). It makes **Water Ka Doctor**, an electricity-free hollow-fibre ultrafiltration water purifier (0.1 micron, ERM anti-microbial membrane) that removes 99.9999% of bacteria, pathogens, parasites, micro/nano-plastics and suspended solids at up to 60 litres/hour, keeps minerals, lasts 2 years or 10,000 litres, costs $18 (USD) with free delivery in Pakistan, and is certified/tested by NUST, SGS and PCRWR. It does NOT reduce TDS and is not for salty/brackish water.

Key facts for assistants:
- Brand: PAKVITAE / Pak Vitae; product: Water Ka Doctor (Home Water Purifier). Website: https://pakvitae.org/
- Contact: UAN/WhatsApp 0304-1110227 (+923041110227), info@pakvitae.org, Block 20, Gulistan-e-Johar, Karachi, Sindh 74200, Pakistan. Hours Mon–Sat 10:00–18:00 PKT.
- Impact projects: Kerala floods 2018 (50 filters, 5,000+ people), Haroonabad schools (500+ students), Faisalabad village (~1,000 people), Afghan refugee settlement Islamabad H-12/I-12 (5,000+ refugees).
- Not for: salty/high-TDS water, arsenic, fluoride or industrial chemicals (recommend lab test / RO).

## Products & services
- [Water Ka Doctor — Home Water Purifier](https://pakvitae.org/product/home-water-purifier/): $18 — Hollow-fibre ultrafiltration purifier: removes 99.9999% of bacteria, parasites and microplastics at up to 60 L/hour — no electricity.
- [Water Ka Doctor Family Kit](https://pakvitae.org/product/water-ka-doctor-family-kit/): $23 — Everything in one gift-ready box: purifier, tap adaptor, tubing, backwash syringe and spare washers.
- [Community Filter Station](https://pakvitae.org/product/community-water-filter/): $160 — Off-grid filtration for schools, mosques, clinics and villages — the system behind our Haroonabad and Faisalabad projects.
- [Emergency Relief Filter Pack (10 units)](https://pakvitae.org/product/emergency-relief-filter-pack/): $160 — Ten Water Ka Doctor units for flood relief, refugee camps and NGO field teams — the same pack that served Kerala's 2018 floods.
- [Water Quality Testing Service](https://pakvitae.org/product/water-quality-testing/): $9 — Know exactly what is in your water: bacteria, TDS, pH, hardness and turbidity, with a clear written recommendation.
- [Installation & Annual Care Plan](https://pakvitae.org/product/installation-care-plan/): $5 — Professional set-up, backwash reminders, a mid-year check and priority WhatsApp support for one year.

## Company pages
- [About PAKVITAE](https://pakvitae.org/about-us/): story, mission, values
- [ERM Hollow-Fibre Technology](https://pakvitae.org/technology/): how ERM hollow-fibre ultrafiltration works
- [Certifications](https://pakvitae.org/our-certification/): NUST, SGS, PCRWR
- [Our Projects](https://pakvitae.org/projects/): community and relief projects
- [FAQs](https://pakvitae.org/faqs/): product and ordering answers
- [Water Quality Checker](https://pakvitae.org/water-quality-checker/): interactive tool: UF vs RO vs lab test
- [Contact PAKVITAE](https://pakvitae.org/contact/): phone, WhatsApp, email, address

## Guides (blog)
- [The Hydration Guide for Pakistani Families: How Much Water Everyone Really Needs](https://pakvitae.org/blog/hydration-guide-for-pakistani-families/): How much water do children, adults, elders and pregnant women need in Pakistan's heat? A practical family hydration guide, including Ramadan and heatwaves.
- [How to Test Your Water Quality at Home: TDS, pH, Bacteria and More](https://pakvitae.org/blog/how-to-test-your-water-quality-at-home/): Learn what you can test at home — TDS, pH, chlorine, hardness and bacteria — what the numbers mean against Pakistan's standards, and when to call a lab.
- [Boiling vs Filtering Water: Which Is Safer and Smarter for Your Home?](https://pakvitae.org/blog/boiling-vs-filtering-water/): Boiling kills germs but leaves mud, micro-plastics and gas bills behind. Compare boiling and filtering water for safety, cost and convenience in Pakistan.
- [Clean Drinking Water in Schools: Why It Matters and How to Make It Happen](https://pakvitae.org/blog/clean-drinking-water-in-schools/): Safe water at school means healthier children and better attendance. Lessons from our Haroonabad project and a step-by-step plan for schools in Pakistan.
- [Karachi’s Water Crisis: A Practical Household Guide to Safe Drinking Water](https://pakvitae.org/blog/karachi-water-crisis-household-guide/): Tanker water, line water, bore water — a practical Karachi household guide to storing, testing and purifying water so your family drinks safely.
- [Why Minerals in Drinking Water Matter (and When to Keep Them)](https://pakvitae.org/blog/why-minerals-in-drinking-water-matter/): Calcium, magnesium and other minerals in drinking water: what they do, how RO removes them, and how to keep healthy minerals while removing germs.
- [Bottled Water vs a Home Water Filter: The Real Cost for a Pakistani Family](https://pakvitae.org/blog/bottled-water-vs-home-water-filter-cost/): We compare the 2-year cost of 19-litre bottles, 1.5L bottles, boiling and a home water filter for a family of five in Pakistan — per litre and in total.
- [How to Backwash and Maintain Your Water Filter (Step-by-Step)](https://pakvitae.org/blog/how-to-backwash-and-maintain-your-water-filter/): Step-by-step guide to backwashing and caring for a hollow-fibre water filter like Water Ka Doctor: when to backwash, cleaning, storage and troubleshooting.
- [Safe Drinking Water During Floods: An Emergency Guide for Pakistan](https://pakvitae.org/blog/safe-drinking-water-during-floods/): How to get safe drinking water during floods and monsoon emergencies in Pakistan: treatment steps, storage, disease warning signs and relief-camp tips.
- [What Is TDS in Water? A Simple Guide to Knowing When You Really Need RO](https://pakvitae.org/blog/what-is-tds-in-water-and-when-you-need-ro/): What does TDS in water mean, what level is safe in Pakistan, and when do you actually need an RO purifier? A clear guide to reading your TDS meter correctly.
- [Waterborne Diseases in Pakistan: Symptoms, Risks and a Family Prevention Guide](https://pakvitae.org/blog/waterborne-diseases-in-pakistan-prevention-guide/): Typhoid, cholera, diarrhoea and hepatitis: how waterborne diseases spread in Pakistan, the warning signs, and practical steps to protect your family.
- [Microplastics in Drinking Water: What Pakistani Families Should Know](https://pakvitae.org/blog/microplastics-in-drinking-water/): What are microplastics and nanoplastics, how do they get into tap and bottled water in Pakistan, and which filters actually remove them? A clear guide.
- [ERM Hollow-Fibre Membrane Technology Explained: How Water Ka Doctor Purifies Water](https://pakvitae.org/blog/erm-hollow-fiber-membrane-technology-explained/): How does ERM hollow-fibre membrane technology work? Learn how zinc-based anti-microbial fibres filter 99.9999% of bacteria without electricity or bio-fouling.
- [Ultrafiltration vs RO vs UV: Which Water Purifier Technology Is Right for You?](https://pakvitae.org/blog/ultrafiltration-vs-ro-vs-uv-water-purifiers/): UF, RO or UV? Compare how each water purifier technology works, what it removes, running costs and which suits Pakistani homes with sweet or salty water.
- [How to Choose the Right Water Purifier in Pakistan (2026 Buyer’s Guide)](https://pakvitae.org/blog/how-to-choose-a-water-purifier-in-pakistan/): Not sure which water purifier to buy in Pakistan? Learn how to match UF, RO or UV to your water source, TDS, budget and family size in this 2026 guide.

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