Science & Sustainability Education
Interactive STEM workshops, educational kits, and hands-on experiences for children ages 5-17. Join 1000+ young scientists learning through our programs in schools, corporate events, and community initiatives.
Returns, Refunds & Warranty
šæ Return, Refund & Warranty Policy
This policy applies to purchases of VAYU and related products made directly from Algreen via . By placing an order, you agree to the terms outlined below.
I. GENERAL RETURN CONDITIONS
We accept returns for eligible products under the following conditions:
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The return request must be submitted within 30 calendar days of delivery.
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The product must be in resalable condition, with no signs of misuse or excessive wear.
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All original components and packaging (manuals, accessories, etc.) must be included.
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The product must have been purchased directly from Algreen.
We reserve the right to refuse returns that do not meet these criteria.
II. RETURN PROCESS
To initiate a return:
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Email algreen@algreentech.com with your full name, order number, and reason for return.
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Upon approval, weāll provide return instructions and the designated shipping address.
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Customers must ship the product back at their own expense using a trackable courier. ā ļø Please do not select "signature required" shipping, as this may delay processing.
Returns without prior approval may be rejected.
III. RETURN SHIPPING & REFUNDS
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Return shipping costs are non-refundable, unless the product has a verified manufacturing defect reported within 14 days of delivery.
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Original shipping fees paid at checkout are also non-refundable.
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Refunds are issued only after the returned product is received and inspected.
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Refunds are processed within 2ā4 business days and applied to the original payment method.
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Depending on your bank, it may take 7ā10 business days for funds to appear.
IV. WARRANTY POLICY
All VAYU units are covered by a 1-year limited warranty from the date of delivery. This includes:
ā Covered:
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Manufacturing defects
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Malfunction due to faulty components or materials
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Functional failures under normal use
ā Not Covered:
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Damage from misuse, abuse, or negligence
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Use of non-VAYU refill liquids
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Accidental drops, cracks, or unauthorized modifications
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Products without valid proof of purchase
V. WARRANTY CLAIMS
To make a claim:
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Email algreen@algreentech.com with your order number, issue description, and clear video evidence of the defect.
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If approved, we may offer:
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Spare parts
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Product replacement
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Repair or refund (at our discretion)
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VI. SPECIAL NOTE ON ALGAE PACKETS
If your algae packet appears yellow or discolored, this must be reported within 2 days of delivery. Reports made after this window will not be eligible for replacement, and a new packet will be chargeable.
For fastest support, please reach out via WhatsApp: +852 9637 1801
VII. NON-RETURNABLE ITEMS
We do not accept returns for:
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Products not purchased from
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Items missing essential components or packaging
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Products showing signs of intentional damage, misuse, or customization
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Returns initiated after 30 days from delivery
VIII. INTERNATIONAL SHIPPING NOTICE
As a small startup shipping globally, we strive to keep costs fair and service reliable. Please note:
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Shipping fees are high and non-refundable, especially for international orders.
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Customs duties, import taxes, and delays are the responsibility of the customer.
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We recommend tracking all shipments and contacting us promptly with any concerns.
IX. CONTACT US
For questions or support: š§ algreen@algreentech.com š± WhatsApp: +852 9637 1801
Hands-On STEM & Biology Workshops | Sustainability Education for Kids
As pioneers in biotech R&D, we want to bridge the gap in interactive science education. Our sustainability workshops combine biology, science, and STEAM education aligned with the UN Sustainable Development Goals. Through hands-on learning experiences, we've inspired over 1000 children to become environmental leaders.