Best Ultrasonic Humidifier in India Under 5000? Looking for long-term user reviews.

Hi everyone,

I'm looking to buy an ultrasonic humidifier for my bedroom (~200 sq ft) to deal with the dry air. I've done some initial research but would love to hear from people actually using these in Indian conditions.

What I'm looking for:

• Ultrasonic type (preferably with cool mist)
• Easy to clean / refill (hard water is an issue here)
• Quiet operation for nighttime use
• Auto-shutoff when water runs out
• Budget: Under ₹5,000 (flexible if worth it)

Brands I've seen mentioned: Allin Exporters, Dr. Trust, AirNest, Crane, Philips - but reviews seem mixed. Some people mention white dust issues with hard water, others say certain models leak after a few months.

Specific questions:

1. Do I need a demineralization cartridge for Delhi NCR tap water?
2. Is a built-in hygrometer worth paying extra for?
3. Any models to absolutely avoid?

Would really appreciate real user experiences rather than just Amazon reviews. Thanks in advance!