Indoor Climate Standards

What Defines a Comfortable Indoor Environment?

A truly comfortable indoor environment is not determined by temperature alone. Modern homes, offices, hotels, and commercial buildings require a balanced combination of temperature control, humidity management, fresh air ventilation, air quality, and acoustic comfort.

At Yuju EnvironTech, we believe that healthy indoor environments should support comfort, productivity, and overall well-being throughout the year.

Temperature Comfort

Maintaining a stable indoor temperature is essential for occupant comfort.

Recommended Temperature Range

• Winter: 20–24°C (68–75°F)

• Summer: 24–27°C (75–81°F)

Proper HVAC design helps eliminate hot and cold spots while delivering consistent comfort throughout the building.

Humidity Control

Indoor humidity directly affects health, comfort, and building performance.

Recommended Relative Humidity

• 40% – 60%

Maintaining proper humidity levels helps reduce mold growth, static electricity, dry skin, and respiratory discomfort.

Fresh Air Ventilation

Fresh outdoor air is essential for maintaining a healthy indoor environment.

A properly designed ventilation system helps reduce carbon dioxide, odors, indoor pollutants, and volatile organic compounds (VOCs), while improving occupant comfort and concentration.

Indoor Air Quality

Clean air is one of the most important elements of a healthy building.

Effective air filtration and purification systems help reduce:

• Dust

• Pollen

• Pet Dander

• PM2.5 Particles

• Airborne Contaminants

• Unpleasant Odors

Improved indoor air quality contributes to healthier living and working environments.

Quiet Operation

Comfort is not only about what people feel, but also what they hear.

Recommended Indoor Noise Levels

• Bedrooms: Below 30 dB

• Living Areas: Below 35 dB

• Offices: Below 40 dB

Proper equipment selection and airflow design help create quieter indoor spaces.

Balanced Air Distribution

Effective airflow distribution ensures that conditioned air reaches every occupied area without causing drafts or discomfort.

A well-designed HVAC system should provide:

• Uniform Temperature Distribution

• Gentle Air Movement

• No Direct Drafts

• Reduced Hot and Cold Zones

• Consistent Indoor Comfort

Climate Solutions for Different Applications

Residential Homes

Create healthier, more comfortable living spaces through balanced temperature, humidity, fresh air, and air purification.

Luxury Villas

Deliver premium indoor comfort with advanced climate control and whole-house air quality management.

Offices & Commercial Spaces

Support employee productivity and customer satisfaction with stable indoor environmental conditions.

Hotels & Hospitality

Enhance guest comfort through quiet operation, fresh air ventilation, humidity control, and reliable HVAC performance.

The Five Pillars of Indoor Comfort

✔ Temperature

✔ Humidity

✔ Fresh Air

✔ Air Quality

✔ Quiet Operation

At Yuju EnvironTech, our climate solutions are designed to help create healthier, more comfortable, and more sustainable indoor environments for residential and commercial buildings worldwide.