Safezone Shelter | Bangkok, Thailand | Shma

Situated in front of the Grand Postal Building during Bangkok Design Week 2020, Safezone Shelter is an ephemeral intervention, aiming to purify air and provide comfort for people, while also raising awareness about “air pollution,” which becomes a critical concern for many societies.

Looking at Bangkok, according to the World Air Quality Index of 2019, it has 54% of total days in a year in which particulate matter (PM) was measured over WHO’s standard level, threatening over one-third of inhabitants. The city has also constantly been facing “Urban Heat Island Effect” from a large amount of hardscape and skyscrapers with inadequate green space. Nonetheless, as Bangkok was selected by UNESCO Creative Cities Network as “Creative City of Design,” it’s a good opportunity to create an experimental space in order to achieve a better city and United Nations (UN)’s Sustainable Development Goal No.11.

Inspired by “cloud,” the pavilion was designed in a futuristic organic form, depicting a clean refreshing atmosphere, while also forming a pleasant Microclimate by equipping vegetation and engineering technology together.

Air quality is a factor needed to be carefully controlled to keep good air inside. First, hot dirty air is pulled inside by a fan, passes through rows of trees and shrubs which capture dusty particles, as well as ground-covering plants which absorb toxic substances. After that, the pre-filtered wind will flow through the dust filter plate and the cooling plate consequently, and come out as a purified breeze at the end.

As providing comfort is also another important circumstance, various techniques are adopted to keep the shelter’s interior temperature at around 22-29 degree Celsius, suitable for Thailand’s tropical climate. They include using fans to release heat and create air flow, wrapping Nylon clothes around the structure to get an interior light with diffused blurry effect – friendly for our eyes, and operating the humidifier to maintain 50-70% humidity level. In addition, natural scents from plants, and experimental music – made up of nature-like sounds (breeze, water, birds) is employed to provide a soothing experience while walking inside the pavilion. 

All of these inventive methods could further be applied to solve air pollution in other kinds of design. At an individual level, a personal mobile suit equipped with a portable air filter could be manufactured, allowing users to move around refreshed. Looking wider at an urban scale, bus stops, recreational space under expressways and skywalks also have a potential to be revitalized with such purification systems. At the end, even high-rise buildings might become old-fashioned when a better choice like an air purifier tower could be constructed.

In conclusion, Safezone Shelter might be seen as a starting point on gaining such benefit from natural species and technological advancement, in order to revitalize Bangkok into a sustainable city that every inhabitant can take a deep breath.

Safezone Shelter

Location |    Grand Postal Office, Bangrak, Bangkok
Client |  Creative Economy Agency (CEA)

Design Period |  DEC 2019 – FEB 2020
Project Area | 150 sq.m
Completion Year |  2020

Collaborators | 

  • Construction team : D63
  • Planting: M.J. Gardens Co., Ltd.
  • Sound design: VWW
  • Information consultant: Asst. Prof. Dr.Prapat Pongkiatkul, Head of the Department of Environmental Engineering, Faculty of Engineering, King Mongkut’s University of Technology Thonburi (KMUTT)
  • Lighting support: Lighting & Equipment PLC.
  • Planting support: Public Park Division, Department of Environment, BMA
  • Interior media support: NYLON Silent Disco

Photographer |  Napon Jaturapuchapornpong

Design Team

Design Director  | Yossapon Boonsom

Landscape Architects  

  • Katavet Sittikit
  • Phat Chapanon
  • Thita Cherdkiadtikul
  • Rattapong Luangpiansamut
  • Chisanucha Ravinantapreecha
  • Nattapreeya Worawicharwong

Horticulturist | Montakran Poonsang, Suphannipha khamma

Graphic Designer | Montree Sommut

Content | Onkamon Nilanon

About Damian Holmes 3144 Articles
Damian Holmes is the Founder and Editor of World Landscape Architecture (WLA). He is a registered landscape architect (AILA) working in international design practice in Australia. Damian founded WLA in 2007 to provide a website for landscape architects written by landscape architects. Connect on Linkedin at